Home / 18,279.14-25,225.20-9,895.64

Finding the Fourth Proportional to 18,279.14, 25,225.20 and 9,895.64

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Solution

The fourth proportional to 18,279.14, 25,225.20 and 9,895.64 is: 13,655.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.14 : 25,225.20 = 9,895.64 : x
  2. Step 2: Convert to fraction form
    18,279.14/25,225.20 = 9,895.64/x
  3. Step 3: Cross multiply
    18,279.14x = 25,225.20 × 9,895.64
  4. Step 4: Simplify right side
    18,279.14x = 249,619,498.13
  5. Step 5: Solve for x
    x = 249,619,498.13/18,279.14
  6. Step 6: Final answer
    x = 13,655.98

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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.