Home / 10,185.92-15,285.65-4,186.91

Finding the Fourth Proportional to 10,185.92, 15,285.65 and 4,186.91

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Solution

The fourth proportional to 10,185.92, 15,285.65 and 4,186.91 is: 6,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.92 : 15,285.65 = 4,186.91 : x
  2. Step 2: Convert to fraction form
    10,185.92/15,285.65 = 4,186.91/x
  3. Step 3: Cross multiply
    10,185.92x = 15,285.65 × 4,186.91
  4. Step 4: Simplify right side
    10,185.92x = 63,999,689.52
  5. Step 5: Solve for x
    x = 63,999,689.52/10,185.92
  6. Step 6: Final answer
    x = 6,283.16

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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.