Home / 10,418.97-14,363.20-7,429.60

Finding the Fourth Proportional to 10,418.97, 14,363.20 and 7,429.60

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Solution

The fourth proportional to 10,418.97, 14,363.20 and 7,429.60 is: 10,242.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.97 : 14,363.20 = 7,429.60 : x
  2. Step 2: Convert to fraction form
    10,418.97/14,363.20 = 7,429.60/x
  3. Step 3: Cross multiply
    10,418.97x = 14,363.20 × 7,429.60
  4. Step 4: Simplify right side
    10,418.97x = 106,712,830.72
  5. Step 5: Solve for x
    x = 106,712,830.72/10,418.97
  6. Step 6: Final answer
    x = 10,242.17

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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.