Home / 13,079.13-19,616.60-5,681.61

Finding the Fourth Proportional to 13,079.13, 19,616.60 and 5,681.61

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Solution

The fourth proportional to 13,079.13, 19,616.60 and 5,681.61 is: 8,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.13 : 19,616.60 = 5,681.61 : x
  2. Step 2: Convert to fraction form
    13,079.13/19,616.60 = 5,681.61/x
  3. Step 3: Cross multiply
    13,079.13x = 19,616.60 × 5,681.61
  4. Step 4: Simplify right side
    13,079.13x = 111,453,842.32
  5. Step 5: Solve for x
    x = 111,453,842.32/13,079.13
  6. Step 6: Final answer
    x = 8,521.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.