Home / 11,782.12-16,259.70-6,477.16

Finding the Fourth Proportional to 11,782.12, 16,259.70 and 6,477.16

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Solution

The fourth proportional to 11,782.12, 16,259.70 and 6,477.16 is: 8,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,782.12 : 16,259.70 = 6,477.16 : x
  2. Step 2: Convert to fraction form
    11,782.12/16,259.70 = 6,477.16/x
  3. Step 3: Cross multiply
    11,782.12x = 16,259.70 × 6,477.16
  4. Step 4: Simplify right side
    11,782.12x = 105,316,678.45
  5. Step 5: Solve for x
    x = 105,316,678.45/11,782.12
  6. Step 6: Final answer
    x = 8,938.69

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Half scale
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Double scale
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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.