Home / 12,002.70-16,565.67-7,289.40

Finding the Fourth Proportional to 12,002.70, 16,565.67 and 7,289.40

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Solution

The fourth proportional to 12,002.70, 16,565.67 and 7,289.40 is: 10,060.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,002.70 : 16,565.67 = 7,289.40 : x
  2. Step 2: Convert to fraction form
    12,002.70/16,565.67 = 7,289.40/x
  3. Step 3: Cross multiply
    12,002.70x = 16,565.67 × 7,289.40
  4. Step 4: Simplify right side
    12,002.70x = 120,753,794.90
  5. Step 5: Solve for x
    x = 120,753,794.90/12,002.70
  6. Step 6: Final answer
    x = 10,060.55

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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.