Home / 15,697.70-23,654.45-12,985.13

Finding the Fourth Proportional to 15,697.70, 23,654.45 and 12,985.13

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Solution

The fourth proportional to 15,697.70, 23,654.45 and 12,985.13 is: 19,566.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697.70 : 23,654.45 = 12,985.13 : x
  2. Step 2: Convert to fraction form
    15,697.70/23,654.45 = 12,985.13/x
  3. Step 3: Cross multiply
    15,697.70x = 23,654.45 × 12,985.13
  4. Step 4: Simplify right side
    15,697.70x = 307,156,108.33
  5. Step 5: Solve for x
    x = 307,156,108.33/15,697.70
  6. Step 6: Final answer
    x = 19,566.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.