Home / 8,347.71-11,519.05-4,989.85

Finding the Fourth Proportional to 8,347.71, 11,519.05 and 4,989.85

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Solution

The fourth proportional to 8,347.71, 11,519.05 and 4,989.85 is: 6,885.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.71 : 11,519.05 = 4,989.85 : x
  2. Step 2: Convert to fraction form
    8,347.71/11,519.05 = 4,989.85/x
  3. Step 3: Cross multiply
    8,347.71x = 11,519.05 × 4,989.85
  4. Step 4: Simplify right side
    8,347.71x = 57,478,331.64
  5. Step 5: Solve for x
    x = 57,478,331.64/8,347.71
  6. Step 6: Final answer
    x = 6,885.52

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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.