Home / 10,371.92-15,562.48-5,440.40

Finding the Fourth Proportional to 10,371.92, 15,562.48 and 5,440.40

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Solution

The fourth proportional to 10,371.92, 15,562.48 and 5,440.40 is: 8,163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.92 : 15,562.48 = 5,440.40 : x
  2. Step 2: Convert to fraction form
    10,371.92/15,562.48 = 5,440.40/x
  3. Step 3: Cross multiply
    10,371.92x = 15,562.48 × 5,440.40
  4. Step 4: Simplify right side
    10,371.92x = 84,666,116.19
  5. Step 5: Solve for x
    x = 84,666,116.19/10,371.92
  6. Step 6: Final answer
    x = 8,163.01

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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.