Home / 18,398.94-25,389.83-10,440.69

Finding the Fourth Proportional to 18,398.94, 25,389.83 and 10,440.69

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Solution

The fourth proportional to 18,398.94, 25,389.83 and 10,440.69 is: 14,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.94 : 25,389.83 = 10,440.69 : x
  2. Step 2: Convert to fraction form
    18,398.94/25,389.83 = 10,440.69/x
  3. Step 3: Cross multiply
    18,398.94x = 25,389.83 × 10,440.69
  4. Step 4: Simplify right side
    18,398.94x = 265,087,344.18
  5. Step 5: Solve for x
    x = 265,087,344.18/18,398.94
  6. Step 6: Final answer
    x = 14,407.75

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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.