Home / 18,727.20-28,055.16-9,966.24

Finding the Fourth Proportional to 18,727.20, 28,055.16 and 9,966.24

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Solution

The fourth proportional to 18,727.20, 28,055.16 and 9,966.24 is: 14,930.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.20 : 28,055.16 = 9,966.24 : x
  2. Step 2: Convert to fraction form
    18,727.20/28,055.16 = 9,966.24/x
  3. Step 3: Cross multiply
    18,727.20x = 28,055.16 × 9,966.24
  4. Step 4: Simplify right side
    18,727.20x = 279,604,457.80
  5. Step 5: Solve for x
    x = 279,604,457.80/18,727.20
  6. Step 6: Final answer
    x = 14,930.39

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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.