Home / 13,349.06-18,425.55-8,815.06

Finding the Fourth Proportional to 13,349.06, 18,425.55 and 8,815.06

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Solution

The fourth proportional to 13,349.06, 18,425.55 and 8,815.06 is: 12,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.06 : 18,425.55 = 8,815.06 : x
  2. Step 2: Convert to fraction form
    13,349.06/18,425.55 = 8,815.06/x
  3. Step 3: Cross multiply
    13,349.06x = 18,425.55 × 8,815.06
  4. Step 4: Simplify right side
    13,349.06x = 162,422,284.71
  5. Step 5: Solve for x
    x = 162,422,284.71/13,349.06
  6. Step 6: Final answer
    x = 12,167.32

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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.