Home / 8,871.29-12,248.08-5,518.67

Finding the Fourth Proportional to 8,871.29, 12,248.08 and 5,518.67

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Solution

The fourth proportional to 8,871.29, 12,248.08 and 5,518.67 is: 7,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.29 : 12,248.08 = 5,518.67 : x
  2. Step 2: Convert to fraction form
    8,871.29/12,248.08 = 5,518.67/x
  3. Step 3: Cross multiply
    8,871.29x = 12,248.08 × 5,518.67
  4. Step 4: Simplify right side
    8,871.29x = 67,593,036.62
  5. Step 5: Solve for x
    x = 67,593,036.62/8,871.29
  6. Step 6: Final answer
    x = 7,619.30

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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.