Home / 12,095.81-18,147.14-10,939.13

Finding the Fourth Proportional to 12,095.81, 18,147.14 and 10,939.13

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Solution

The fourth proportional to 12,095.81, 18,147.14 and 10,939.13 is: 16,411.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,095.81 : 18,147.14 = 10,939.13 : x
  2. Step 2: Convert to fraction form
    12,095.81/18,147.14 = 10,939.13/x
  3. Step 3: Cross multiply
    12,095.81x = 18,147.14 × 10,939.13
  4. Step 4: Simplify right side
    12,095.81x = 198,513,868.89
  5. Step 5: Solve for x
    x = 198,513,868.89/12,095.81
  6. Step 6: Final answer
    x = 16,411.79

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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.