Home / 15,031.08-20,752.34-9,655.65

Finding the Fourth Proportional to 15,031.08, 20,752.34 and 9,655.65

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Solution

The fourth proportional to 15,031.08, 20,752.34 and 9,655.65 is: 13,330.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,031.08 : 20,752.34 = 9,655.65 : x
  2. Step 2: Convert to fraction form
    15,031.08/20,752.34 = 9,655.65/x
  3. Step 3: Cross multiply
    15,031.08x = 20,752.34 × 9,655.65
  4. Step 4: Simplify right side
    15,031.08x = 200,377,283.44
  5. Step 5: Solve for x
    x = 200,377,283.44/15,031.08
  6. Step 6: Final answer
    x = 13,330.86

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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.