Home / 9,239.63-12,746.91-6,822.78

Finding the Fourth Proportional to 9,239.63, 12,746.91 and 6,822.78

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Solution

The fourth proportional to 9,239.63, 12,746.91 and 6,822.78 is: 9,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.63 : 12,746.91 = 6,822.78 : x
  2. Step 2: Convert to fraction form
    9,239.63/12,746.91 = 6,822.78/x
  3. Step 3: Cross multiply
    9,239.63x = 12,746.91 × 6,822.78
  4. Step 4: Simplify right side
    9,239.63x = 86,969,362.61
  5. Step 5: Solve for x
    x = 86,969,362.61/9,239.63
  6. Step 6: Final answer
    x = 9,412.65

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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.