Home / 13,036.47-18,005.18-8,837.43

Finding the Fourth Proportional to 13,036.47, 18,005.18 and 8,837.43

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Solution

The fourth proportional to 13,036.47, 18,005.18 and 8,837.43 is: 12,205.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.47 : 18,005.18 = 8,837.43 : x
  2. Step 2: Convert to fraction form
    13,036.47/18,005.18 = 8,837.43/x
  3. Step 3: Cross multiply
    13,036.47x = 18,005.18 × 8,837.43
  4. Step 4: Simplify right side
    13,036.47x = 159,119,517.89
  5. Step 5: Solve for x
    x = 159,119,517.89/13,036.47
  6. Step 6: Final answer
    x = 12,205.72

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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.