Home / 11,122.08-15,349.76-6,406.24

Finding the Fourth Proportional to 11,122.08, 15,349.76 and 6,406.24

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Solution

The fourth proportional to 11,122.08, 15,349.76 and 6,406.24 is: 8,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.08 : 15,349.76 = 6,406.24 : x
  2. Step 2: Convert to fraction form
    11,122.08/15,349.76 = 6,406.24/x
  3. Step 3: Cross multiply
    11,122.08x = 15,349.76 × 6,406.24
  4. Step 4: Simplify right side
    11,122.08x = 98,334,246.50
  5. Step 5: Solve for x
    x = 98,334,246.50/11,122.08
  6. Step 6: Final answer
    x = 8,841.35

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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.