Home / 18,587.66-25,647.66-10,521.28

Finding the Fourth Proportional to 18,587.66, 25,647.66 and 10,521.28

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Solution

The fourth proportional to 18,587.66, 25,647.66 and 10,521.28 is: 14,517.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.66 : 25,647.66 = 10,521.28 : x
  2. Step 2: Convert to fraction form
    18,587.66/25,647.66 = 10,521.28/x
  3. Step 3: Cross multiply
    18,587.66x = 25,647.66 × 10,521.28
  4. Step 4: Simplify right side
    18,587.66x = 269,846,031.36
  5. Step 5: Solve for x
    x = 269,846,031.36/18,587.66
  6. Step 6: Final answer
    x = 14,517.48

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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.