Home / 9,316.30-12,856.95-5,337.42

Finding the Fourth Proportional to 9,316.30, 12,856.95 and 5,337.42

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Solution

The fourth proportional to 9,316.30, 12,856.95 and 5,337.42 is: 7,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,316.30 : 12,856.95 = 5,337.42 : x
  2. Step 2: Convert to fraction form
    9,316.30/12,856.95 = 5,337.42/x
  3. Step 3: Cross multiply
    9,316.30x = 12,856.95 × 5,337.42
  4. Step 4: Simplify right side
    9,316.30x = 68,622,960.87
  5. Step 5: Solve for x
    x = 68,622,960.87/9,316.30
  6. Step 6: Final answer
    x = 7,365.90

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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.