Home / 15,294.95-21,114.46-10,257.34

Finding the Fourth Proportional to 15,294.95, 21,114.46 and 10,257.34

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Solution

The fourth proportional to 15,294.95, 21,114.46 and 10,257.34 is: 14,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.95 : 21,114.46 = 10,257.34 : x
  2. Step 2: Convert to fraction form
    15,294.95/21,114.46 = 10,257.34/x
  3. Step 3: Cross multiply
    15,294.95x = 21,114.46 × 10,257.34
  4. Step 4: Simplify right side
    15,294.95x = 216,578,195.14
  5. Step 5: Solve for x
    x = 216,578,195.14/15,294.95
  6. Step 6: Final answer
    x = 14,160.11

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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.