Home / 12,319.38-17,001.45-7,603.74

Finding the Fourth Proportional to 12,319.38, 17,001.45 and 7,603.74

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Solution

The fourth proportional to 12,319.38, 17,001.45 and 7,603.74 is: 10,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.38 : 17,001.45 = 7,603.74 : x
  2. Step 2: Convert to fraction form
    12,319.38/17,001.45 = 7,603.74/x
  3. Step 3: Cross multiply
    12,319.38x = 17,001.45 × 7,603.74
  4. Step 4: Simplify right side
    12,319.38x = 129,274,605.42
  5. Step 5: Solve for x
    x = 129,274,605.42/12,319.38
  6. Step 6: Final answer
    x = 10,493.60

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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.