Home / 8,347.30-11,515.36-4,988.42

Finding the Fourth Proportional to 8,347.30, 11,515.36 and 4,988.42

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Solution

The fourth proportional to 8,347.30, 11,515.36 and 4,988.42 is: 6,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.30 : 11,515.36 = 4,988.42 : x
  2. Step 2: Convert to fraction form
    8,347.30/11,515.36 = 4,988.42/x
  3. Step 3: Cross multiply
    8,347.30x = 11,515.36 × 4,988.42
  4. Step 4: Simplify right side
    8,347.30x = 57,443,452.13
  5. Step 5: Solve for x
    x = 57,443,452.13/8,347.30
  6. Step 6: Final answer
    x = 6,881.68

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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.