Home / 8,386.67-11,574.30-5,408.72

Finding the Fourth Proportional to 8,386.67, 11,574.30 and 5,408.72

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Solution

The fourth proportional to 8,386.67, 11,574.30 and 5,408.72 is: 7,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.67 : 11,574.30 = 5,408.72 : x
  2. Step 2: Convert to fraction form
    8,386.67/11,574.30 = 5,408.72/x
  3. Step 3: Cross multiply
    8,386.67x = 11,574.30 × 5,408.72
  4. Step 4: Simplify right side
    8,386.67x = 62,602,147.90
  5. Step 5: Solve for x
    x = 62,602,147.90/8,386.67
  6. Step 6: Final answer
    x = 7,464.48

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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.