Home / 10,411.18-15,603.18-9,091.80

Finding the Fourth Proportional to 10,411.18, 15,603.18 and 9,091.80

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Solution

The fourth proportional to 10,411.18, 15,603.18 and 9,091.80 is: 13,625.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411.18 : 15,603.18 = 9,091.80 : x
  2. Step 2: Convert to fraction form
    10,411.18/15,603.18 = 9,091.80/x
  3. Step 3: Cross multiply
    10,411.18x = 15,603.18 × 9,091.80
  4. Step 4: Simplify right side
    10,411.18x = 141,860,957.83
  5. Step 5: Solve for x
    x = 141,860,957.83/10,411.18
  6. Step 6: Final answer
    x = 13,625.83

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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.