Home / 9,193.23-12,686.67-5,215.14

Finding the Fourth Proportional to 9,193.23, 12,686.67 and 5,215.14

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Solution

The fourth proportional to 9,193.23, 12,686.67 and 5,215.14 is: 7,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,193.23 : 12,686.67 = 5,215.14 : x
  2. Step 2: Convert to fraction form
    9,193.23/12,686.67 = 5,215.14/x
  3. Step 3: Cross multiply
    9,193.23x = 12,686.67 × 5,215.14
  4. Step 4: Simplify right side
    9,193.23x = 66,162,760.18
  5. Step 5: Solve for x
    x = 66,162,760.18/9,193.23
  6. Step 6: Final answer
    x = 7,196.90

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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.