Home / 9,011.20-12,444.96-6,894.40

Finding the Fourth Proportional to 9,011.20, 12,444.96 and 6,894.40

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Solution

The fourth proportional to 9,011.20, 12,444.96 and 6,894.40 is: 9,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.20 : 12,444.96 = 6,894.40 : x
  2. Step 2: Convert to fraction form
    9,011.20/12,444.96 = 6,894.40/x
  3. Step 3: Cross multiply
    9,011.20x = 12,444.96 × 6,894.40
  4. Step 4: Simplify right side
    9,011.20x = 85,800,532.22
  5. Step 5: Solve for x
    x = 85,800,532.22/9,011.20
  6. Step 6: Final answer
    x = 9,521.54

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Half scale
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Double scale
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Similar ratio
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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.