Home / 15,031-20,741.46-8,316.52

Finding the Fourth Proportional to 15,031, 20,741.46 and 8,316.52

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Solution

The fourth proportional to 15,031, 20,741.46 and 8,316.52 is: 11,476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,031 : 20,741.46 = 8,316.52 : x
  2. Step 2: Convert to fraction form
    15,031/20,741.46 = 8,316.52/x
  3. Step 3: Cross multiply
    15,031x = 20,741.46 × 8,316.52
  4. Step 4: Simplify right side
    15,031x = 172,496,766.92
  5. Step 5: Solve for x
    x = 172,496,766.92/15,031
  6. Step 6: Final answer
    x = 11,476.07

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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.