Home / 13,348.66-18,428.65-8,878.50

Finding the Fourth Proportional to 13,348.66, 18,428.65 and 8,878.50

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Solution

The fourth proportional to 13,348.66, 18,428.65 and 8,878.50 is: 12,257.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.66 : 18,428.65 = 8,878.50 : x
  2. Step 2: Convert to fraction form
    13,348.66/18,428.65 = 8,878.50/x
  3. Step 3: Cross multiply
    13,348.66x = 18,428.65 × 8,878.50
  4. Step 4: Simplify right side
    13,348.66x = 163,618,769.03
  5. Step 5: Solve for x
    x = 163,618,769.03/13,348.66
  6. Step 6: Final answer
    x = 12,257.32

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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.