Home / 11,158.22-15,397.68-6,378.68

Finding the Fourth Proportional to 11,158.22, 15,397.68 and 6,378.68

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Solution

The fourth proportional to 11,158.22, 15,397.68 and 6,378.68 is: 8,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.22 : 15,397.68 = 6,378.68 : x
  2. Step 2: Convert to fraction form
    11,158.22/15,397.68 = 6,378.68/x
  3. Step 3: Cross multiply
    11,158.22x = 15,397.68 × 6,378.68
  4. Step 4: Simplify right side
    11,158.22x = 98,216,873.46
  5. Step 5: Solve for x
    x = 98,216,873.46/11,158.22
  6. Step 6: Final answer
    x = 8,802.20

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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.