Home / 25,665.65-38,498.10-8,135.52

Finding the Fourth Proportional to 25,665.65, 38,498.10 and 8,135.52

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Solution

The fourth proportional to 25,665.65, 38,498.10 and 8,135.52 is: 12,203.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.65 : 38,498.10 = 8,135.52 : x
  2. Step 2: Convert to fraction form
    25,665.65/38,498.10 = 8,135.52/x
  3. Step 3: Cross multiply
    25,665.65x = 38,498.10 × 8,135.52
  4. Step 4: Simplify right side
    25,665.65x = 313,202,062.51
  5. Step 5: Solve for x
    x = 313,202,062.51/25,665.65
  6. Step 6: Final answer
    x = 12,203.16

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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.