Home / 15,425.64-21,267.50-12,590.10

Finding the Fourth Proportional to 15,425.64, 21,267.50 and 12,590.10

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Solution

The fourth proportional to 15,425.64, 21,267.50 and 12,590.10 is: 17,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.64 : 21,267.50 = 12,590.10 : x
  2. Step 2: Convert to fraction form
    15,425.64/21,267.50 = 12,590.10/x
  3. Step 3: Cross multiply
    15,425.64x = 21,267.50 × 12,590.10
  4. Step 4: Simplify right side
    15,425.64x = 267,759,888.80
  5. Step 5: Solve for x
    x = 267,759,888.80/15,425.64
  6. Step 6: Final answer
    x = 17,358.11

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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.