Home / 13,385.58-18,480.54-8,607.66

Finding the Fourth Proportional to 13,385.58, 18,480.54 and 8,607.66

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Solution

The fourth proportional to 13,385.58, 18,480.54 and 8,607.66 is: 11,884.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.58 : 18,480.54 = 8,607.66 : x
  2. Step 2: Convert to fraction form
    13,385.58/18,480.54 = 8,607.66/x
  3. Step 3: Cross multiply
    13,385.58x = 18,480.54 × 8,607.66
  4. Step 4: Simplify right side
    13,385.58x = 159,074,204.94
  5. Step 5: Solve for x
    x = 159,074,204.94/13,385.58
  6. Step 6: Final answer
    x = 11,884.00

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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.