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Finding the Fourth Proportional to 7,018.68, 9,687.78 and 4,364.76

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Solution

The fourth proportional to 7,018.68, 9,687.78 and 4,364.76 is: 6,024.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.68 : 9,687.78 = 4,364.76 : x
  2. Step 2: Convert to fraction form
    7,018.68/9,687.78 = 4,364.76/x
  3. Step 3: Cross multiply
    7,018.68x = 9,687.78 × 4,364.76
  4. Step 4: Simplify right side
    7,018.68x = 42,284,834.63
  5. Step 5: Solve for x
    x = 42,284,834.63/7,018.68
  6. Step 6: Final answer
    x = 6,024.61

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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.