Home / 10,247.06-14,145.30-6,891.81

Finding the Fourth Proportional to 10,247.06, 14,145.30 and 6,891.81

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Solution

The fourth proportional to 10,247.06, 14,145.30 and 6,891.81 is: 9,513.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.06 : 14,145.30 = 6,891.81 : x
  2. Step 2: Convert to fraction form
    10,247.06/14,145.30 = 6,891.81/x
  3. Step 3: Cross multiply
    10,247.06x = 14,145.30 × 6,891.81
  4. Step 4: Simplify right side
    10,247.06x = 97,486,719.99
  5. Step 5: Solve for x
    x = 97,486,719.99/10,247.06
  6. Step 6: Final answer
    x = 9,513.63

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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.