Home / 15,543.87-23,315.90-5,679.08

Finding the Fourth Proportional to 15,543.87, 23,315.90 and 5,679.08

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Solution

The fourth proportional to 15,543.87, 23,315.90 and 5,679.08 is: 8,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.87 : 23,315.90 = 5,679.08 : x
  2. Step 2: Convert to fraction form
    15,543.87/23,315.90 = 5,679.08/x
  3. Step 3: Cross multiply
    15,543.87x = 23,315.90 × 5,679.08
  4. Step 4: Simplify right side
    15,543.87x = 132,412,716.40
  5. Step 5: Solve for x
    x = 132,412,716.40/15,543.87
  6. Step 6: Final answer
    x = 8,518.65

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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.