Home / 9,138.12-12,606.67-5,362.44

Finding the Fourth Proportional to 9,138.12, 12,606.67 and 5,362.44

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Solution

The fourth proportional to 9,138.12, 12,606.67 and 5,362.44 is: 7,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.12 : 12,606.67 = 5,362.44 : x
  2. Step 2: Convert to fraction form
    9,138.12/12,606.67 = 5,362.44/x
  3. Step 3: Cross multiply
    9,138.12x = 12,606.67 × 5,362.44
  4. Step 4: Simplify right side
    9,138.12x = 67,602,511.47
  5. Step 5: Solve for x
    x = 67,602,511.47/9,138.12
  6. Step 6: Final answer
    x = 7,397.86

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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.