Home / 10,312.52-15,468.78-2,521.32

Finding the Fourth Proportional to 10,312.52, 15,468.78 and 2,521.32

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Solution

The fourth proportional to 10,312.52, 15,468.78 and 2,521.32 is: 3,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.52 : 15,468.78 = 2,521.32 : x
  2. Step 2: Convert to fraction form
    10,312.52/15,468.78 = 2,521.32/x
  3. Step 3: Cross multiply
    10,312.52x = 15,468.78 × 2,521.32
  4. Step 4: Simplify right side
    10,312.52x = 39,001,744.39
  5. Step 5: Solve for x
    x = 39,001,744.39/10,312.52
  6. Step 6: Final answer
    x = 3,781.98

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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.