Home / 11,782.28-16,260.24-6,477.08

Finding the Fourth Proportional to 11,782.28, 16,260.24 and 6,477.08

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Solution

The fourth proportional to 11,782.28, 16,260.24 and 6,477.08 is: 8,938.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,782.28 : 16,260.24 = 6,477.08 : x
  2. Step 2: Convert to fraction form
    11,782.28/16,260.24 = 6,477.08/x
  3. Step 3: Cross multiply
    11,782.28x = 16,260.24 × 6,477.08
  4. Step 4: Simplify right side
    11,782.28x = 105,318,875.30
  5. Step 5: Solve for x
    x = 105,318,875.30/11,782.28
  6. Step 6: Final answer
    x = 8,938.75

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Half scale
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Double scale
Find fourth proportional to 11,783.28, 16,261.62 and 6,478.08
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.