Home / 18,344.32-25,314.66-10,387.28

Finding the Fourth Proportional to 18,344.32, 25,314.66 and 10,387.28

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Solution

The fourth proportional to 18,344.32, 25,314.66 and 10,387.28 is: 14,334.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.32 : 25,314.66 = 10,387.28 : x
  2. Step 2: Convert to fraction form
    18,344.32/25,314.66 = 10,387.28/x
  3. Step 3: Cross multiply
    18,344.32x = 25,314.66 × 10,387.28
  4. Step 4: Simplify right side
    18,344.32x = 262,950,524.81
  5. Step 5: Solve for x
    x = 262,950,524.81/18,344.32
  6. Step 6: Final answer
    x = 14,334.17

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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.