Home / 10,195.87-14,062.18-8,424.40

Finding the Fourth Proportional to 10,195.87, 14,062.18 and 8,424.40

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Solution

The fourth proportional to 10,195.87, 14,062.18 and 8,424.40 is: 11,618.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.87 : 14,062.18 = 8,424.40 : x
  2. Step 2: Convert to fraction form
    10,195.87/14,062.18 = 8,424.40/x
  3. Step 3: Cross multiply
    10,195.87x = 14,062.18 × 8,424.40
  4. Step 4: Simplify right side
    10,195.87x = 118,465,316.76
  5. Step 5: Solve for x
    x = 118,465,316.76/10,195.87
  6. Step 6: Final answer
    x = 11,618.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.