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Finding the Fourth Proportional to 9,187.68, 12,679.02 and 4,995.93

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Solution

The fourth proportional to 9,187.68, 12,679.02 and 4,995.93 is: 6,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.68 : 12,679.02 = 4,995.93 : x
  2. Step 2: Convert to fraction form
    9,187.68/12,679.02 = 4,995.93/x
  3. Step 3: Cross multiply
    9,187.68x = 12,679.02 × 4,995.93
  4. Step 4: Simplify right side
    9,187.68x = 63,343,496.39
  5. Step 5: Solve for x
    x = 63,343,496.39/9,187.68
  6. Step 6: Final answer
    x = 6,894.40

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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.