Home / 10,678.59-15,995.57-8,587.31

Finding the Fourth Proportional to 10,678.59, 15,995.57 and 8,587.31

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Solution

The fourth proportional to 10,678.59, 15,995.57 and 8,587.31 is: 12,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.59 : 15,995.57 = 8,587.31 : x
  2. Step 2: Convert to fraction form
    10,678.59/15,995.57 = 8,587.31/x
  3. Step 3: Cross multiply
    10,678.59x = 15,995.57 × 8,587.31
  4. Step 4: Simplify right side
    10,678.59x = 137,358,795.30
  5. Step 5: Solve for x
    x = 137,358,795.30/10,678.59
  6. Step 6: Final answer
    x = 12,863.01

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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.