Home / 11,518.86-17,255.35-8,877.15

Finding the Fourth Proportional to 11,518.86, 17,255.35 and 8,877.15

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Solution

The fourth proportional to 11,518.86, 17,255.35 and 8,877.15 is: 13,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.86 : 17,255.35 = 8,877.15 : x
  2. Step 2: Convert to fraction form
    11,518.86/17,255.35 = 8,877.15/x
  3. Step 3: Cross multiply
    11,518.86x = 17,255.35 × 8,877.15
  4. Step 4: Simplify right side
    11,518.86x = 153,178,330.25
  5. Step 5: Solve for x
    x = 153,178,330.25/11,518.86
  6. Step 6: Final answer
    x = 13,298.05

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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.