Home / 10,989.04-15,165.12-6,273.20

Finding the Fourth Proportional to 10,989.04, 15,165.12 and 6,273.20

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Solution

The fourth proportional to 10,989.04, 15,165.12 and 6,273.20 is: 8,657.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.04 : 15,165.12 = 6,273.20 : x
  2. Step 2: Convert to fraction form
    10,989.04/15,165.12 = 6,273.20/x
  3. Step 3: Cross multiply
    10,989.04x = 15,165.12 × 6,273.20
  4. Step 4: Simplify right side
    10,989.04x = 95,133,830.78
  5. Step 5: Solve for x
    x = 95,133,830.78/10,989.04
  6. Step 6: Final answer
    x = 8,657.16

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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.