Home / 8,424.79-11,622.51-5,065.66

Finding the Fourth Proportional to 8,424.79, 11,622.51 and 5,065.66

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Solution

The fourth proportional to 8,424.79, 11,622.51 and 5,065.66 is: 6,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.79 : 11,622.51 = 5,065.66 : x
  2. Step 2: Convert to fraction form
    8,424.79/11,622.51 = 5,065.66/x
  3. Step 3: Cross multiply
    8,424.79x = 11,622.51 × 5,065.66
  4. Step 4: Simplify right side
    8,424.79x = 58,875,684.01
  5. Step 5: Solve for x
    x = 58,875,684.01/8,424.79
  6. Step 6: Final answer
    x = 6,988.39

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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.