Home / 8,417.94-11,618.10-6,424.71

Finding the Fourth Proportional to 8,417.94, 11,618.10 and 6,424.71

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Solution

The fourth proportional to 8,417.94, 11,618.10 and 6,424.71 is: 8,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.94 : 11,618.10 = 6,424.71 : x
  2. Step 2: Convert to fraction form
    8,417.94/11,618.10 = 6,424.71/x
  3. Step 3: Cross multiply
    8,417.94x = 11,618.10 × 6,424.71
  4. Step 4: Simplify right side
    8,417.94x = 74,642,923.25
  5. Step 5: Solve for x
    x = 74,642,923.25/8,417.94
  6. Step 6: Final answer
    x = 8,867.12

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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.