Home / 15,030.72-20,743.20-9,443.52

Finding the Fourth Proportional to 15,030.72, 20,743.20 and 9,443.52

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Solution

The fourth proportional to 15,030.72, 20,743.20 and 9,443.52 is: 13,032.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.72 : 20,743.20 = 9,443.52 : x
  2. Step 2: Convert to fraction form
    15,030.72/20,743.20 = 9,443.52/x
  3. Step 3: Cross multiply
    15,030.72x = 20,743.20 × 9,443.52
  4. Step 4: Simplify right side
    15,030.72x = 195,888,824.06
  5. Step 5: Solve for x
    x = 195,888,824.06/15,030.72
  6. Step 6: Final answer
    x = 13,032.56

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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.