Home / 10,269.45-15,403.41-4,988.16

Finding the Fourth Proportional to 10,269.45, 15,403.41 and 4,988.16

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Solution

The fourth proportional to 10,269.45, 15,403.41 and 4,988.16 is: 7,481.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,269.45 : 15,403.41 = 4,988.16 : x
  2. Step 2: Convert to fraction form
    10,269.45/15,403.41 = 4,988.16/x
  3. Step 3: Cross multiply
    10,269.45x = 15,403.41 × 4,988.16
  4. Step 4: Simplify right side
    10,269.45x = 76,834,673.63
  5. Step 5: Solve for x
    x = 76,834,673.63/10,269.45
  6. Step 6: Final answer
    x = 7,481.87

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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.