Home / 14,775.62-20,387.36-9,400.19

Finding the Fourth Proportional to 14,775.62, 20,387.36 and 9,400.19

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Solution

The fourth proportional to 14,775.62, 20,387.36 and 9,400.19 is: 12,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.62 : 20,387.36 = 9,400.19 : x
  2. Step 2: Convert to fraction form
    14,775.62/20,387.36 = 9,400.19/x
  3. Step 3: Cross multiply
    14,775.62x = 20,387.36 × 9,400.19
  4. Step 4: Simplify right side
    14,775.62x = 191,644,979.16
  5. Step 5: Solve for x
    x = 191,644,979.16/14,775.62
  6. Step 6: Final answer
    x = 12,970.36

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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.