Home / 10,224.32-14,104.80-6,445.76

Finding the Fourth Proportional to 10,224.32, 14,104.80 and 6,445.76

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Solution

The fourth proportional to 10,224.32, 14,104.80 and 6,445.76 is: 8,892.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,224.32 : 14,104.80 = 6,445.76 : x
  2. Step 2: Convert to fraction form
    10,224.32/14,104.80 = 6,445.76/x
  3. Step 3: Cross multiply
    10,224.32x = 14,104.80 × 6,445.76
  4. Step 4: Simplify right side
    10,224.32x = 90,916,155.65
  5. Step 5: Solve for x
    x = 90,916,155.65/10,224.32
  6. Step 6: Final answer
    x = 8,892.15

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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.