Home / 10,980.20-15,154.34-7,002.92

Finding the Fourth Proportional to 10,980.20, 15,154.34 and 7,002.92

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Solution

The fourth proportional to 10,980.20, 15,154.34 and 7,002.92 is: 9,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.20 : 15,154.34 = 7,002.92 : x
  2. Step 2: Convert to fraction form
    10,980.20/15,154.34 = 7,002.92/x
  3. Step 3: Cross multiply
    10,980.20x = 15,154.34 × 7,002.92
  4. Step 4: Simplify right side
    10,980.20x = 106,124,630.67
  5. Step 5: Solve for x
    x = 106,124,630.67/10,980.20
  6. Step 6: Final answer
    x = 9,665.09

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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.