Home / 11,376.86-15,701.60-6,899.88

Finding the Fourth Proportional to 11,376.86, 15,701.60 and 6,899.88

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Solution

The fourth proportional to 11,376.86, 15,701.60 and 6,899.88 is: 9,522.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.86 : 15,701.60 = 6,899.88 : x
  2. Step 2: Convert to fraction form
    11,376.86/15,701.60 = 6,899.88/x
  3. Step 3: Cross multiply
    11,376.86x = 15,701.60 × 6,899.88
  4. Step 4: Simplify right side
    11,376.86x = 108,339,193.13
  5. Step 5: Solve for x
    x = 108,339,193.13/11,376.86
  6. Step 6: Final answer
    x = 9,522.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.