Home / 10,657.19-15,964.90-8,785.76

Finding the Fourth Proportional to 10,657.19, 15,964.90 and 8,785.76

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Solution

The fourth proportional to 10,657.19, 15,964.90 and 8,785.76 is: 13,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,657.19 : 15,964.90 = 8,785.76 : x
  2. Step 2: Convert to fraction form
    10,657.19/15,964.90 = 8,785.76/x
  3. Step 3: Cross multiply
    10,657.19x = 15,964.90 × 8,785.76
  4. Step 4: Simplify right side
    10,657.19x = 140,263,678.04
  5. Step 5: Solve for x
    x = 140,263,678.04/10,657.19
  6. Step 6: Final answer
    x = 13,161.41

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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.