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Finding the Fourth Proportional to 15,203.61, 22,805.76 and 12,085.77

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Solution

The fourth proportional to 15,203.61, 22,805.76 and 12,085.77 is: 18,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203.61 : 22,805.76 = 12,085.77 : x
  2. Step 2: Convert to fraction form
    15,203.61/22,805.76 = 12,085.77/x
  3. Step 3: Cross multiply
    15,203.61x = 22,805.76 × 12,085.77
  4. Step 4: Simplify right side
    15,203.61x = 275,625,170.04
  5. Step 5: Solve for x
    x = 275,625,170.04/15,203.61
  6. Step 6: Final answer
    x = 18,128.93

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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.