Home / 15,856.90-23,769.15-9,279.70

Finding the Fourth Proportional to 15,856.90, 23,769.15 and 9,279.70

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Solution

The fourth proportional to 15,856.90, 23,769.15 and 9,279.70 is: 13,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856.90 : 23,769.15 = 9,279.70 : x
  2. Step 2: Convert to fraction form
    15,856.90/23,769.15 = 9,279.70/x
  3. Step 3: Cross multiply
    15,856.90x = 23,769.15 × 9,279.70
  4. Step 4: Simplify right side
    15,856.90x = 220,570,581.26
  5. Step 5: Solve for x
    x = 220,570,581.26/15,856.90
  6. Step 6: Final answer
    x = 13,910.07

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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.