Home / 15,001.68-20,703.60-8,288.04

Finding the Fourth Proportional to 15,001.68, 20,703.60 and 8,288.04

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Solution

The fourth proportional to 15,001.68, 20,703.60 and 8,288.04 is: 11,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.68 : 20,703.60 = 8,288.04 : x
  2. Step 2: Convert to fraction form
    15,001.68/20,703.60 = 8,288.04/x
  3. Step 3: Cross multiply
    15,001.68x = 20,703.60 × 8,288.04
  4. Step 4: Simplify right side
    15,001.68x = 171,592,264.94
  5. Step 5: Solve for x
    x = 171,592,264.94/15,001.68
  6. Step 6: Final answer
    x = 11,438.20

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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.