Home / 15,172.87-20,937.54-9,507.46

Finding the Fourth Proportional to 15,172.87, 20,937.54 and 9,507.46

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Solution

The fourth proportional to 15,172.87, 20,937.54 and 9,507.46 is: 13,119.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172.87 : 20,937.54 = 9,507.46 : x
  2. Step 2: Convert to fraction form
    15,172.87/20,937.54 = 9,507.46/x
  3. Step 3: Cross multiply
    15,172.87x = 20,937.54 × 9,507.46
  4. Step 4: Simplify right side
    15,172.87x = 199,062,824.05
  5. Step 5: Solve for x
    x = 199,062,824.05/15,172.87
  6. Step 6: Final answer
    x = 13,119.66

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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.