Home / 10,601.35-15,908.10-7,316.80

Finding the Fourth Proportional to 10,601.35, 15,908.10 and 7,316.80

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Solution

The fourth proportional to 10,601.35, 15,908.10 and 7,316.80 is: 10,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,601.35 : 15,908.10 = 7,316.80 : x
  2. Step 2: Convert to fraction form
    10,601.35/15,908.10 = 7,316.80/x
  3. Step 3: Cross multiply
    10,601.35x = 15,908.10 × 7,316.80
  4. Step 4: Simplify right side
    10,601.35x = 116,396,386.08
  5. Step 5: Solve for x
    x = 116,396,386.08/10,601.35
  6. Step 6: Final answer
    x = 10,979.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.