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Finding the Fourth Proportional to 8,530.15, 12,737.66 and 6,973.21

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Solution

The fourth proportional to 8,530.15, 12,737.66 and 6,973.21 is: 10,412.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.15 : 12,737.66 = 6,973.21 : x
  2. Step 2: Convert to fraction form
    8,530.15/12,737.66 = 6,973.21/x
  3. Step 3: Cross multiply
    8,530.15x = 12,737.66 × 6,973.21
  4. Step 4: Simplify right side
    8,530.15x = 88,822,378.09
  5. Step 5: Solve for x
    x = 88,822,378.09/8,530.15
  6. Step 6: Final answer
    x = 10,412.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.