Home / 15,132.18-20,882.70-8,848.20

Finding the Fourth Proportional to 15,132.18, 20,882.70 and 8,848.20

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Solution

The fourth proportional to 15,132.18, 20,882.70 and 8,848.20 is: 12,210.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.18 : 20,882.70 = 8,848.20 : x
  2. Step 2: Convert to fraction form
    15,132.18/20,882.70 = 8,848.20/x
  3. Step 3: Cross multiply
    15,132.18x = 20,882.70 × 8,848.20
  4. Step 4: Simplify right side
    15,132.18x = 184,774,306.14
  5. Step 5: Solve for x
    x = 184,774,306.14/15,132.18
  6. Step 6: Final answer
    x = 12,210.69

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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.