Home / 15,013.03-20,719.26-8,725

Finding the Fourth Proportional to 15,013.03, 20,719.26 and 8,725

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Solution

The fourth proportional to 15,013.03, 20,719.26 and 8,725 is: 12,041.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013.03 : 20,719.26 = 8,725 : x
  2. Step 2: Convert to fraction form
    15,013.03/20,719.26 = 8,725/x
  3. Step 3: Cross multiply
    15,013.03x = 20,719.26 × 8,725
  4. Step 4: Simplify right side
    15,013.03x = 180,775,543.50
  5. Step 5: Solve for x
    x = 180,775,543.50/15,013.03
  6. Step 6: Final answer
    x = 12,041.24

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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.