Home / 15,420.72-23,132.52-7,103.04

Finding the Fourth Proportional to 15,420.72, 23,132.52 and 7,103.04

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Solution

The fourth proportional to 15,420.72, 23,132.52 and 7,103.04 is: 10,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.72 : 23,132.52 = 7,103.04 : x
  2. Step 2: Convert to fraction form
    15,420.72/23,132.52 = 7,103.04/x
  3. Step 3: Cross multiply
    15,420.72x = 23,132.52 × 7,103.04
  4. Step 4: Simplify right side
    15,420.72x = 164,311,214.86
  5. Step 5: Solve for x
    x = 164,311,214.86/15,420.72
  6. Step 6: Final answer
    x = 10,655.22

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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.