Home / 15,185.91-22,779-5,325.18

Finding the Fourth Proportional to 15,185.91, 22,779 and 5,325.18

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Solution

The fourth proportional to 15,185.91, 22,779 and 5,325.18 is: 7,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185.91 : 22,779 = 5,325.18 : x
  2. Step 2: Convert to fraction form
    15,185.91/22,779 = 5,325.18/x
  3. Step 3: Cross multiply
    15,185.91x = 22,779 × 5,325.18
  4. Step 4: Simplify right side
    15,185.91x = 121,302,275.22
  5. Step 5: Solve for x
    x = 121,302,275.22/15,185.91
  6. Step 6: Final answer
    x = 7,987.82

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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.