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Finding the Fourth Proportional to 8,688.07, 13,017.75 and 7,302.07

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Solution

The fourth proportional to 8,688.07, 13,017.75 and 7,302.07 is: 10,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.07 : 13,017.75 = 7,302.07 : x
  2. Step 2: Convert to fraction form
    8,688.07/13,017.75 = 7,302.07/x
  3. Step 3: Cross multiply
    8,688.07x = 13,017.75 × 7,302.07
  4. Step 4: Simplify right side
    8,688.07x = 95,056,521.74
  5. Step 5: Solve for x
    x = 95,056,521.74/8,688.07
  6. Step 6: Final answer
    x = 10,941.04

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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.