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Finding the Fourth Proportional to 9,871.16, 14,811.60 and 6,968.12

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Solution

The fourth proportional to 9,871.16, 14,811.60 and 6,968.12 is: 10,455.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.16 : 14,811.60 = 6,968.12 : x
  2. Step 2: Convert to fraction form
    9,871.16/14,811.60 = 6,968.12/x
  3. Step 3: Cross multiply
    9,871.16x = 14,811.60 × 6,968.12
  4. Step 4: Simplify right side
    9,871.16x = 103,209,006.19
  5. Step 5: Solve for x
    x = 103,209,006.19/9,871.16
  6. Step 6: Final answer
    x = 10,455.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.