Home / 10,979.22-15,148.62-6,502.75

Finding the Fourth Proportional to 10,979.22, 15,148.62 and 6,502.75

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Solution

The fourth proportional to 10,979.22, 15,148.62 and 6,502.75 is: 8,972.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.22 : 15,148.62 = 6,502.75 : x
  2. Step 2: Convert to fraction form
    10,979.22/15,148.62 = 6,502.75/x
  3. Step 3: Cross multiply
    10,979.22x = 15,148.62 × 6,502.75
  4. Step 4: Simplify right side
    10,979.22x = 98,507,688.71
  5. Step 5: Solve for x
    x = 98,507,688.71/10,979.22
  6. Step 6: Final answer
    x = 8,972.19

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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.