Home / 15,125.34-20,872.36-8,410.47

Finding the Fourth Proportional to 15,125.34, 20,872.36 and 8,410.47

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Solution

The fourth proportional to 15,125.34, 20,872.36 and 8,410.47 is: 11,606.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.34 : 20,872.36 = 8,410.47 : x
  2. Step 2: Convert to fraction form
    15,125.34/20,872.36 = 8,410.47/x
  3. Step 3: Cross multiply
    15,125.34x = 20,872.36 × 8,410.47
  4. Step 4: Simplify right side
    15,125.34x = 175,546,357.61
  5. Step 5: Solve for x
    x = 175,546,357.61/15,125.34
  6. Step 6: Final answer
    x = 11,606.11

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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.