Home / 18,315.65-25,279.28-10,764.42

Finding the Fourth Proportional to 18,315.65, 25,279.28 and 10,764.42

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Solution

The fourth proportional to 18,315.65, 25,279.28 and 10,764.42 is: 14,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.65 : 25,279.28 = 10,764.42 : x
  2. Step 2: Convert to fraction form
    18,315.65/25,279.28 = 10,764.42/x
  3. Step 3: Cross multiply
    18,315.65x = 25,279.28 × 10,764.42
  4. Step 4: Simplify right side
    18,315.65x = 272,116,733.40
  5. Step 5: Solve for x
    x = 272,116,733.40/18,315.65
  6. Step 6: Final answer
    x = 14,857.07

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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.