Home / 13,631.96-18,818.19-9,032.45

Finding the Fourth Proportional to 13,631.96, 18,818.19 and 9,032.45

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Solution

The fourth proportional to 13,631.96, 18,818.19 and 9,032.45 is: 12,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.96 : 18,818.19 = 9,032.45 : x
  2. Step 2: Convert to fraction form
    13,631.96/18,818.19 = 9,032.45/x
  3. Step 3: Cross multiply
    13,631.96x = 18,818.19 × 9,032.45
  4. Step 4: Simplify right side
    13,631.96x = 169,974,266.17
  5. Step 5: Solve for x
    x = 169,974,266.17/13,631.96
  6. Step 6: Final answer
    x = 12,468.80

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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.