Home / 9,358.18-12,913.95-5,166.34

Finding the Fourth Proportional to 9,358.18, 12,913.95 and 5,166.34

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Solution

The fourth proportional to 9,358.18, 12,913.95 and 5,166.34 is: 7,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358.18 : 12,913.95 = 5,166.34 : x
  2. Step 2: Convert to fraction form
    9,358.18/12,913.95 = 5,166.34/x
  3. Step 3: Cross multiply
    9,358.18x = 12,913.95 × 5,166.34
  4. Step 4: Simplify right side
    9,358.18x = 66,717,856.44
  5. Step 5: Solve for x
    x = 66,717,856.44/9,358.18
  6. Step 6: Final answer
    x = 7,129.36

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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.