Home / 15,706.08-21,654.27-12,862.98

Finding the Fourth Proportional to 15,706.08, 21,654.27 and 12,862.98

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Solution

The fourth proportional to 15,706.08, 21,654.27 and 12,862.98 is: 17,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.08 : 21,654.27 = 12,862.98 : x
  2. Step 2: Convert to fraction form
    15,706.08/21,654.27 = 12,862.98/x
  3. Step 3: Cross multiply
    15,706.08x = 21,654.27 × 12,862.98
  4. Step 4: Simplify right side
    15,706.08x = 278,538,441.92
  5. Step 5: Solve for x
    x = 278,538,441.92/15,706.08
  6. Step 6: Final answer
    x = 17,734.43

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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.