Home / 15,308.68-21,126.20-8,595.76

Finding the Fourth Proportional to 15,308.68, 21,126.20 and 8,595.76

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Solution

The fourth proportional to 15,308.68, 21,126.20 and 8,595.76 is: 11,862.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.68 : 21,126.20 = 8,595.76 : x
  2. Step 2: Convert to fraction form
    15,308.68/21,126.20 = 8,595.76/x
  3. Step 3: Cross multiply
    15,308.68x = 21,126.20 × 8,595.76
  4. Step 4: Simplify right side
    15,308.68x = 181,595,744.91
  5. Step 5: Solve for x
    x = 181,595,744.91/15,308.68
  6. Step 6: Final answer
    x = 11,862.27

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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.