Home / 13,750.05-18,979.59-8,084.53

Finding the Fourth Proportional to 13,750.05, 18,979.59 and 8,084.53

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Solution

The fourth proportional to 13,750.05, 18,979.59 and 8,084.53 is: 11,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.05 : 18,979.59 = 8,084.53 : x
  2. Step 2: Convert to fraction form
    13,750.05/18,979.59 = 8,084.53/x
  3. Step 3: Cross multiply
    13,750.05x = 18,979.59 × 8,084.53
  4. Step 4: Simplify right side
    13,750.05x = 153,441,064.74
  5. Step 5: Solve for x
    x = 153,441,064.74/13,750.05
  6. Step 6: Final answer
    x = 11,159.31

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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.