Home / 10,357.20-15,510.96-8,495.28

Finding the Fourth Proportional to 10,357.20, 15,510.96 and 8,495.28

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Solution

The fourth proportional to 10,357.20, 15,510.96 and 8,495.28 is: 12,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,357.20 : 15,510.96 = 8,495.28 : x
  2. Step 2: Convert to fraction form
    10,357.20/15,510.96 = 8,495.28/x
  3. Step 3: Cross multiply
    10,357.20x = 15,510.96 × 8,495.28
  4. Step 4: Simplify right side
    10,357.20x = 131,769,948.27
  5. Step 5: Solve for x
    x = 131,769,948.27/10,357.20
  6. Step 6: Final answer
    x = 12,722.55

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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.