Home / 10,418.30-14,362.31-7,428.95

Finding the Fourth Proportional to 10,418.30, 14,362.31 and 7,428.95

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Solution

The fourth proportional to 10,418.30, 14,362.31 and 7,428.95 is: 10,241.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.30 : 14,362.31 = 7,428.95 : x
  2. Step 2: Convert to fraction form
    10,418.30/14,362.31 = 7,428.95/x
  3. Step 3: Cross multiply
    10,418.30x = 14,362.31 × 7,428.95
  4. Step 4: Simplify right side
    10,418.30x = 106,696,882.87
  5. Step 5: Solve for x
    x = 106,696,882.87/10,418.30
  6. Step 6: Final answer
    x = 10,241.29

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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.