Home / 15,675.50-21,632.19-9,391.52

Finding the Fourth Proportional to 15,675.50, 21,632.19 and 9,391.52

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Solution

The fourth proportional to 15,675.50, 21,632.19 and 9,391.52 is: 12,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.50 : 21,632.19 = 9,391.52 : x
  2. Step 2: Convert to fraction form
    15,675.50/21,632.19 = 9,391.52/x
  3. Step 3: Cross multiply
    15,675.50x = 21,632.19 × 9,391.52
  4. Step 4: Simplify right side
    15,675.50x = 203,159,145.03
  5. Step 5: Solve for x
    x = 203,159,145.03/15,675.50
  6. Step 6: Final answer
    x = 12,960.30

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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.