Home / 8,918.66-12,307.41-4,885.43

Finding the Fourth Proportional to 8,918.66, 12,307.41 and 4,885.43

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Solution

The fourth proportional to 8,918.66, 12,307.41 and 4,885.43 is: 6,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.66 : 12,307.41 = 4,885.43 : x
  2. Step 2: Convert to fraction form
    8,918.66/12,307.41 = 4,885.43/x
  3. Step 3: Cross multiply
    8,918.66x = 12,307.41 × 4,885.43
  4. Step 4: Simplify right side
    8,918.66x = 60,126,928.50
  5. Step 5: Solve for x
    x = 60,126,928.50/8,918.66
  6. Step 6: Final answer
    x = 6,741.70

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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.