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Finding the Fourth Proportional to 6,885.16, 9,498.18 and 4,088.68

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Solution

The fourth proportional to 6,885.16, 9,498.18 and 4,088.68 is: 5,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.16 : 9,498.18 = 4,088.68 : x
  2. Step 2: Convert to fraction form
    6,885.16/9,498.18 = 4,088.68/x
  3. Step 3: Cross multiply
    6,885.16x = 9,498.18 × 4,088.68
  4. Step 4: Simplify right side
    6,885.16x = 38,835,018.60
  5. Step 5: Solve for x
    x = 38,835,018.60/6,885.16
  6. Step 6: Final answer
    x = 5,640.39

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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.