Home / 9,366.35-12,928.34-5,390.26

Finding the Fourth Proportional to 9,366.35, 12,928.34 and 5,390.26

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Solution

The fourth proportional to 9,366.35, 12,928.34 and 5,390.26 is: 7,440.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,366.35 : 12,928.34 = 5,390.26 : x
  2. Step 2: Convert to fraction form
    9,366.35/12,928.34 = 5,390.26/x
  3. Step 3: Cross multiply
    9,366.35x = 12,928.34 × 5,390.26
  4. Step 4: Simplify right side
    9,366.35x = 69,687,167.85
  5. Step 5: Solve for x
    x = 69,687,167.85/9,366.35
  6. Step 6: Final answer
    x = 7,440.16

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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.