Home / 19,287.97-28,931.64-6,140.15

Finding the Fourth Proportional to 19,287.97, 28,931.64 and 6,140.15

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Solution

The fourth proportional to 19,287.97, 28,931.64 and 6,140.15 is: 9,210.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.97 : 28,931.64 = 6,140.15 : x
  2. Step 2: Convert to fraction form
    19,287.97/28,931.64 = 6,140.15/x
  3. Step 3: Cross multiply
    19,287.97x = 28,931.64 × 6,140.15
  4. Step 4: Simplify right side
    19,287.97x = 177,644,609.35
  5. Step 5: Solve for x
    x = 177,644,609.35/19,287.97
  6. Step 6: Final answer
    x = 9,210.12

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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.