Home / 14,287.40-21,431.10-10,132.10

Finding the Fourth Proportional to 14,287.40, 21,431.10 and 10,132.10

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Solution

The fourth proportional to 14,287.40, 21,431.10 and 10,132.10 is: 15,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.40 : 21,431.10 = 10,132.10 : x
  2. Step 2: Convert to fraction form
    14,287.40/21,431.10 = 10,132.10/x
  3. Step 3: Cross multiply
    14,287.40x = 21,431.10 × 10,132.10
  4. Step 4: Simplify right side
    14,287.40x = 217,142,048.31
  5. Step 5: Solve for x
    x = 217,142,048.31/14,287.40
  6. Step 6: Final answer
    x = 15,198.15

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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.