Home / 14,210.20-19,568.28-9,729.28

Finding the Fourth Proportional to 14,210.20, 19,568.28 and 9,729.28

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Solution

The fourth proportional to 14,210.20, 19,568.28 and 9,729.28 is: 13,397.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.20 : 19,568.28 = 9,729.28 : x
  2. Step 2: Convert to fraction form
    14,210.20/19,568.28 = 9,729.28/x
  3. Step 3: Cross multiply
    14,210.20x = 19,568.28 × 9,729.28
  4. Step 4: Simplify right side
    14,210.20x = 190,385,275.24
  5. Step 5: Solve for x
    x = 190,385,275.24/14,210.20
  6. Step 6: Final answer
    x = 13,397.79

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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.