Home / 15,346.20-21,172.20-10,044.12

Finding the Fourth Proportional to 15,346.20, 21,172.20 and 10,044.12

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Solution

The fourth proportional to 15,346.20, 21,172.20 and 10,044.12 is: 13,857.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.20 : 21,172.20 = 10,044.12 : x
  2. Step 2: Convert to fraction form
    15,346.20/21,172.20 = 10,044.12/x
  3. Step 3: Cross multiply
    15,346.20x = 21,172.20 × 10,044.12
  4. Step 4: Simplify right side
    15,346.20x = 212,656,117.46
  5. Step 5: Solve for x
    x = 212,656,117.46/15,346.20
  6. Step 6: Final answer
    x = 13,857.25

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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.