Home / 18,308.10-25,263.18-10,348.50

Finding the Fourth Proportional to 18,308.10, 25,263.18 and 10,348.50

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Solution

The fourth proportional to 18,308.10, 25,263.18 and 10,348.50 is: 14,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.10 : 25,263.18 = 10,348.50 : x
  2. Step 2: Convert to fraction form
    18,308.10/25,263.18 = 10,348.50/x
  3. Step 3: Cross multiply
    18,308.10x = 25,263.18 × 10,348.50
  4. Step 4: Simplify right side
    18,308.10x = 261,436,018.23
  5. Step 5: Solve for x
    x = 261,436,018.23/18,308.10
  6. Step 6: Final answer
    x = 14,279.80

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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.