Home / 15,960.80-23,985.12-8,570.72

Finding the Fourth Proportional to 15,960.80, 23,985.12 and 8,570.72

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Solution

The fourth proportional to 15,960.80, 23,985.12 and 8,570.72 is: 12,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.80 : 23,985.12 = 8,570.72 : x
  2. Step 2: Convert to fraction form
    15,960.80/23,985.12 = 8,570.72/x
  3. Step 3: Cross multiply
    15,960.80x = 23,985.12 × 8,570.72
  4. Step 4: Simplify right side
    15,960.80x = 205,569,747.69
  5. Step 5: Solve for x
    x = 205,569,747.69/15,960.80
  6. Step 6: Final answer
    x = 12,879.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.