Home / 10,979.89-15,152.45-6,502.01

Finding the Fourth Proportional to 10,979.89, 15,152.45 and 6,502.01

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Solution

The fourth proportional to 10,979.89, 15,152.45 and 6,502.01 is: 8,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.89 : 15,152.45 = 6,502.01 : x
  2. Step 2: Convert to fraction form
    10,979.89/15,152.45 = 6,502.01/x
  3. Step 3: Cross multiply
    10,979.89x = 15,152.45 × 6,502.01
  4. Step 4: Simplify right side
    10,979.89x = 98,521,273.15
  5. Step 5: Solve for x
    x = 98,521,273.15/10,979.89
  6. Step 6: Final answer
    x = 8,972.89

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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.