Home / 9,108.90-13,663.35-8,288.10

Finding the Fourth Proportional to 9,108.90, 13,663.35 and 8,288.10

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Solution

The fourth proportional to 9,108.90, 13,663.35 and 8,288.10 is: 12,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.90 : 13,663.35 = 8,288.10 : x
  2. Step 2: Convert to fraction form
    9,108.90/13,663.35 = 8,288.10/x
  3. Step 3: Cross multiply
    9,108.90x = 13,663.35 × 8,288.10
  4. Step 4: Simplify right side
    9,108.90x = 113,243,211.14
  5. Step 5: Solve for x
    x = 113,243,211.14/9,108.90
  6. Step 6: Final answer
    x = 12,432.15

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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.