Home / 10,179.12-15,271.92-6,484.56

Finding the Fourth Proportional to 10,179.12, 15,271.92 and 6,484.56

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Solution

The fourth proportional to 10,179.12, 15,271.92 and 6,484.56 is: 9,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.12 : 15,271.92 = 6,484.56 : x
  2. Step 2: Convert to fraction form
    10,179.12/15,271.92 = 6,484.56/x
  3. Step 3: Cross multiply
    10,179.12x = 15,271.92 × 6,484.56
  4. Step 4: Simplify right side
    10,179.12x = 99,031,681.56
  5. Step 5: Solve for x
    x = 99,031,681.56/10,179.12
  6. Step 6: Final answer
    x = 9,728.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.