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Finding the Fourth Proportional to 18,303.08, 25,258 and 10,347.88

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Solution

The fourth proportional to 18,303.08, 25,258 and 10,347.88 is: 14,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.08 : 25,258 = 10,347.88 : x
  2. Step 2: Convert to fraction form
    18,303.08/25,258 = 10,347.88/x
  3. Step 3: Cross multiply
    18,303.08x = 25,258 × 10,347.88
  4. Step 4: Simplify right side
    18,303.08x = 261,366,753.04
  5. Step 5: Solve for x
    x = 261,366,753.04/18,303.08
  6. Step 6: Final answer
    x = 14,279.93

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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.