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Finding the Fourth Proportional to 8,320.53, 12,408.63 and 7,095.81

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Solution

The fourth proportional to 8,320.53, 12,408.63 and 7,095.81 is: 10,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.53 : 12,408.63 = 7,095.81 : x
  2. Step 2: Convert to fraction form
    8,320.53/12,408.63 = 7,095.81/x
  3. Step 3: Cross multiply
    8,320.53x = 12,408.63 × 7,095.81
  4. Step 4: Simplify right side
    8,320.53x = 88,049,280.84
  5. Step 5: Solve for x
    x = 88,049,280.84/8,320.53
  6. Step 6: Final answer
    x = 10,582.17

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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.