Home / 10,280.30-15,422.70-4,040.30

Finding the Fourth Proportional to 10,280.30, 15,422.70 and 4,040.30

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Solution

The fourth proportional to 10,280.30, 15,422.70 and 4,040.30 is: 6,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.30 : 15,422.70 = 4,040.30 : x
  2. Step 2: Convert to fraction form
    10,280.30/15,422.70 = 4,040.30/x
  3. Step 3: Cross multiply
    10,280.30x = 15,422.70 × 4,040.30
  4. Step 4: Simplify right side
    10,280.30x = 62,312,334.81
  5. Step 5: Solve for x
    x = 62,312,334.81/10,280.30
  6. Step 6: Final answer
    x = 6,061.33

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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.