Home / 13,385.42-18,480.54-8,607.50

Finding the Fourth Proportional to 13,385.42, 18,480.54 and 8,607.50

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Solution

The fourth proportional to 13,385.42, 18,480.54 and 8,607.50 is: 11,883.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.42 : 18,480.54 = 8,607.50 : x
  2. Step 2: Convert to fraction form
    13,385.42/18,480.54 = 8,607.50/x
  3. Step 3: Cross multiply
    13,385.42x = 18,480.54 × 8,607.50
  4. Step 4: Simplify right side
    13,385.42x = 159,071,248.05
  5. Step 5: Solve for x
    x = 159,071,248.05/13,385.42
  6. Step 6: Final answer
    x = 11,883.92

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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.