Home / 18,331.32-25,297.74-10,778.16

Finding the Fourth Proportional to 18,331.32, 25,297.74 and 10,778.16

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Solution

The fourth proportional to 18,331.32, 25,297.74 and 10,778.16 is: 14,874.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.32 : 25,297.74 = 10,778.16 : x
  2. Step 2: Convert to fraction form
    18,331.32/25,297.74 = 10,778.16/x
  3. Step 3: Cross multiply
    18,331.32x = 25,297.74 × 10,778.16
  4. Step 4: Simplify right side
    18,331.32x = 272,663,089.36
  5. Step 5: Solve for x
    x = 272,663,089.36/18,331.32
  6. Step 6: Final answer
    x = 14,874.17

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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.