Home / 15,407.52-23,111.34-3,720.72

Finding the Fourth Proportional to 15,407.52, 23,111.34 and 3,720.72

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Solution

The fourth proportional to 15,407.52, 23,111.34 and 3,720.72 is: 5,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.52 : 23,111.34 = 3,720.72 : x
  2. Step 2: Convert to fraction form
    15,407.52/23,111.34 = 3,720.72/x
  3. Step 3: Cross multiply
    15,407.52x = 23,111.34 × 3,720.72
  4. Step 4: Simplify right side
    15,407.52x = 85,990,824.96
  5. Step 5: Solve for x
    x = 85,990,824.96/15,407.52
  6. Step 6: Final answer
    x = 5,581.09

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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.