Home / 18,308.58-25,264.08-13,531.50

Finding the Fourth Proportional to 18,308.58, 25,264.08 and 13,531.50

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Solution

The fourth proportional to 18,308.58, 25,264.08 and 13,531.50 is: 18,672.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.58 : 25,264.08 = 13,531.50 : x
  2. Step 2: Convert to fraction form
    18,308.58/25,264.08 = 13,531.50/x
  3. Step 3: Cross multiply
    18,308.58x = 25,264.08 × 13,531.50
  4. Step 4: Simplify right side
    18,308.58x = 341,860,898.52
  5. Step 5: Solve for x
    x = 341,860,898.52/18,308.58
  6. Step 6: Final answer
    x = 18,672.17

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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.