Home / 13,366.02-20,042.28-4,478.28

Finding the Fourth Proportional to 13,366.02, 20,042.28 and 4,478.28

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Solution

The fourth proportional to 13,366.02, 20,042.28 and 4,478.28 is: 6,715.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.02 : 20,042.28 = 4,478.28 : x
  2. Step 2: Convert to fraction form
    13,366.02/20,042.28 = 4,478.28/x
  3. Step 3: Cross multiply
    13,366.02x = 20,042.28 × 4,478.28
  4. Step 4: Simplify right side
    13,366.02x = 89,754,941.68
  5. Step 5: Solve for x
    x = 89,754,941.68/13,366.02
  6. Step 6: Final answer
    x = 6,715.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.