Home / 15,295.46-21,115.15-10,257.84

Finding the Fourth Proportional to 15,295.46, 21,115.15 and 10,257.84

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Solution

The fourth proportional to 15,295.46, 21,115.15 and 10,257.84 is: 14,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.46 : 21,115.15 = 10,257.84 : x
  2. Step 2: Convert to fraction form
    15,295.46/21,115.15 = 10,257.84/x
  3. Step 3: Cross multiply
    15,295.46x = 21,115.15 × 10,257.84
  4. Step 4: Simplify right side
    15,295.46x = 216,595,830.28
  5. Step 5: Solve for x
    x = 216,595,830.28/15,295.46
  6. Step 6: Final answer
    x = 14,160.79

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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.