Home / 10,522.16-15,780.51-3,124.88

Finding the Fourth Proportional to 10,522.16, 15,780.51 and 3,124.88

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Solution

The fourth proportional to 10,522.16, 15,780.51 and 3,124.88 is: 4,686.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.16 : 15,780.51 = 3,124.88 : x
  2. Step 2: Convert to fraction form
    10,522.16/15,780.51 = 3,124.88/x
  3. Step 3: Cross multiply
    10,522.16x = 15,780.51 × 3,124.88
  4. Step 4: Simplify right side
    10,522.16x = 49,312,200.09
  5. Step 5: Solve for x
    x = 49,312,200.09/10,522.16
  6. Step 6: Final answer
    x = 4,686.51

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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.