Home / 18,138.65-25,032.45-10,180.87

Finding the Fourth Proportional to 18,138.65, 25,032.45 and 10,180.87

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Solution

The fourth proportional to 18,138.65, 25,032.45 and 10,180.87 is: 14,050.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.65 : 25,032.45 = 10,180.87 : x
  2. Step 2: Convert to fraction form
    18,138.65/25,032.45 = 10,180.87/x
  3. Step 3: Cross multiply
    18,138.65x = 25,032.45 × 10,180.87
  4. Step 4: Simplify right side
    18,138.65x = 254,852,068.33
  5. Step 5: Solve for x
    x = 254,852,068.33/18,138.65
  6. Step 6: Final answer
    x = 14,050.23

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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.