Home / 8,334.40-12,503.36-3,140.32

Finding the Fourth Proportional to 8,334.40, 12,503.36 and 3,140.32

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Solution

The fourth proportional to 8,334.40, 12,503.36 and 3,140.32 is: 4,711.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,334.40 : 12,503.36 = 3,140.32 : x
  2. Step 2: Convert to fraction form
    8,334.40/12,503.36 = 3,140.32/x
  3. Step 3: Cross multiply
    8,334.40x = 12,503.36 × 3,140.32
  4. Step 4: Simplify right side
    8,334.40x = 39,264,551.48
  5. Step 5: Solve for x
    x = 39,264,551.48/8,334.40
  6. Step 6: Final answer
    x = 4,711.14

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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.