Home / 18,645.02-25,730.67-10,147.69

Finding the Fourth Proportional to 18,645.02, 25,730.67 and 10,147.69

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Solution

The fourth proportional to 18,645.02, 25,730.67 and 10,147.69 is: 14,004.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.02 : 25,730.67 = 10,147.69 : x
  2. Step 2: Convert to fraction form
    18,645.02/25,730.67 = 10,147.69/x
  3. Step 3: Cross multiply
    18,645.02x = 25,730.67 × 10,147.69
  4. Step 4: Simplify right side
    18,645.02x = 261,106,862.65
  5. Step 5: Solve for x
    x = 261,106,862.65/18,645.02
  6. Step 6: Final answer
    x = 14,004.11

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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.