Home / 10,218.84-14,088.78-6,680.76

Finding the Fourth Proportional to 10,218.84, 14,088.78 and 6,680.76

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Solution

The fourth proportional to 10,218.84, 14,088.78 and 6,680.76 is: 9,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.84 : 14,088.78 = 6,680.76 : x
  2. Step 2: Convert to fraction form
    10,218.84/14,088.78 = 6,680.76/x
  3. Step 3: Cross multiply
    10,218.84x = 14,088.78 × 6,680.76
  4. Step 4: Simplify right side
    10,218.84x = 94,123,757.87
  5. Step 5: Solve for x
    x = 94,123,757.87/10,218.84
  6. Step 6: Final answer
    x = 9,210.81

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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.