Home / 15,096.80-20,853.52-12,587.12

Finding the Fourth Proportional to 15,096.80, 20,853.52 and 12,587.12

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Solution

The fourth proportional to 15,096.80, 20,853.52 and 12,587.12 is: 17,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,096.80 : 20,853.52 = 12,587.12 : x
  2. Step 2: Convert to fraction form
    15,096.80/20,853.52 = 12,587.12/x
  3. Step 3: Cross multiply
    15,096.80x = 20,853.52 × 12,587.12
  4. Step 4: Simplify right side
    15,096.80x = 262,485,758.66
  5. Step 5: Solve for x
    x = 262,485,758.66/15,096.80
  6. Step 6: Final answer
    x = 17,386.85

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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.