Home / 10,688.20-14,754.68-6,211.08

Finding the Fourth Proportional to 10,688.20, 14,754.68 and 6,211.08

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Solution

The fourth proportional to 10,688.20, 14,754.68 and 6,211.08 is: 8,574.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.20 : 14,754.68 = 6,211.08 : x
  2. Step 2: Convert to fraction form
    10,688.20/14,754.68 = 6,211.08/x
  3. Step 3: Cross multiply
    10,688.20x = 14,754.68 × 6,211.08
  4. Step 4: Simplify right side
    10,688.20x = 91,642,497.85
  5. Step 5: Solve for x
    x = 91,642,497.85/10,688.20
  6. Step 6: Final answer
    x = 8,574.18

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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.