Home / 15,543.55-23,312.85-5,155.30

Finding the Fourth Proportional to 15,543.55, 23,312.85 and 5,155.30

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Solution

The fourth proportional to 15,543.55, 23,312.85 and 5,155.30 is: 7,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.55 : 23,312.85 = 5,155.30 : x
  2. Step 2: Convert to fraction form
    15,543.55/23,312.85 = 5,155.30/x
  3. Step 3: Cross multiply
    15,543.55x = 23,312.85 × 5,155.30
  4. Step 4: Simplify right side
    15,543.55x = 120,184,735.61
  5. Step 5: Solve for x
    x = 120,184,735.61/15,543.55
  6. Step 6: Final answer
    x = 7,732.13

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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.