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Finding the Fourth Proportional to 7,389.88, 10,191 and 4,962.88

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Solution

The fourth proportional to 7,389.88, 10,191 and 4,962.88 is: 6,844.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.88 : 10,191 = 4,962.88 : x
  2. Step 2: Convert to fraction form
    7,389.88/10,191 = 4,962.88/x
  3. Step 3: Cross multiply
    7,389.88x = 10,191 × 4,962.88
  4. Step 4: Simplify right side
    7,389.88x = 50,576,710.08
  5. Step 5: Solve for x
    x = 50,576,710.08/7,389.88
  6. Step 6: Final answer
    x = 6,844.05

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Half scale
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Double scale
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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.