Home / 15,750.66-21,735.24-9,031.62

Finding the Fourth Proportional to 15,750.66, 21,735.24 and 9,031.62

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Solution

The fourth proportional to 15,750.66, 21,735.24 and 9,031.62 is: 12,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.66 : 21,735.24 = 9,031.62 : x
  2. Step 2: Convert to fraction form
    15,750.66/21,735.24 = 9,031.62/x
  3. Step 3: Cross multiply
    15,750.66x = 21,735.24 × 9,031.62
  4. Step 4: Simplify right side
    15,750.66x = 196,304,428.29
  5. Step 5: Solve for x
    x = 196,304,428.29/15,750.66
  6. Step 6: Final answer
    x = 12,463.25

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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.