Home / 18,765.13-25,896.69-10,381.63

Finding the Fourth Proportional to 18,765.13, 25,896.69 and 10,381.63

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Solution

The fourth proportional to 18,765.13, 25,896.69 and 10,381.63 is: 14,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.13 : 25,896.69 = 10,381.63 : x
  2. Step 2: Convert to fraction form
    18,765.13/25,896.69 = 10,381.63/x
  3. Step 3: Cross multiply
    18,765.13x = 25,896.69 × 10,381.63
  4. Step 4: Simplify right side
    18,765.13x = 268,849,853.80
  5. Step 5: Solve for x
    x = 268,849,853.80/18,765.13
  6. Step 6: Final answer
    x = 14,327.10

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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.