Home / 13,875.66-19,164.20-9,330.44

Finding the Fourth Proportional to 13,875.66, 19,164.20 and 9,330.44

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Solution

The fourth proportional to 13,875.66, 19,164.20 and 9,330.44 is: 12,886.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.66 : 19,164.20 = 9,330.44 : x
  2. Step 2: Convert to fraction form
    13,875.66/19,164.20 = 9,330.44/x
  3. Step 3: Cross multiply
    13,875.66x = 19,164.20 × 9,330.44
  4. Step 4: Simplify right side
    13,875.66x = 178,810,418.25
  5. Step 5: Solve for x
    x = 178,810,418.25/13,875.66
  6. Step 6: Final answer
    x = 12,886.62

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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.