Home / 11,395.13-15,727.10-6,679.40

Finding the Fourth Proportional to 11,395.13, 15,727.10 and 6,679.40

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Solution

The fourth proportional to 11,395.13, 15,727.10 and 6,679.40 is: 9,218.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.13 : 15,727.10 = 6,679.40 : x
  2. Step 2: Convert to fraction form
    11,395.13/15,727.10 = 6,679.40/x
  3. Step 3: Cross multiply
    11,395.13x = 15,727.10 × 6,679.40
  4. Step 4: Simplify right side
    11,395.13x = 105,047,479.71
  5. Step 5: Solve for x
    x = 105,047,479.71/11,395.13
  6. Step 6: Final answer
    x = 9,218.63

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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.