Home / 9,316.20-12,856.20-5,124.42

Finding the Fourth Proportional to 9,316.20, 12,856.20 and 5,124.42

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Solution

The fourth proportional to 9,316.20, 12,856.20 and 5,124.42 is: 7,071.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,316.20 : 12,856.20 = 5,124.42 : x
  2. Step 2: Convert to fraction form
    9,316.20/12,856.20 = 5,124.42/x
  3. Step 3: Cross multiply
    9,316.20x = 12,856.20 × 5,124.42
  4. Step 4: Simplify right side
    9,316.20x = 65,880,568.40
  5. Step 5: Solve for x
    x = 65,880,568.40/9,316.20
  6. Step 6: Final answer
    x = 7,071.61

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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.