Home / 8,809.29-12,157.38-5,819.88

Finding the Fourth Proportional to 8,809.29, 12,157.38 and 5,819.88

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Solution

The fourth proportional to 8,809.29, 12,157.38 and 5,819.88 is: 8,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.29 : 12,157.38 = 5,819.88 : x
  2. Step 2: Convert to fraction form
    8,809.29/12,157.38 = 5,819.88/x
  3. Step 3: Cross multiply
    8,809.29x = 12,157.38 × 5,819.88
  4. Step 4: Simplify right side
    8,809.29x = 70,754,492.71
  5. Step 5: Solve for x
    x = 70,754,492.71/8,809.29
  6. Step 6: Final answer
    x = 8,031.80

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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.