Home / 8,442.51-11,650.64-4,665.57

Finding the Fourth Proportional to 8,442.51, 11,650.64 and 4,665.57

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Solution

The fourth proportional to 8,442.51, 11,650.64 and 4,665.57 is: 6,438.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,442.51 : 11,650.64 = 4,665.57 : x
  2. Step 2: Convert to fraction form
    8,442.51/11,650.64 = 4,665.57/x
  3. Step 3: Cross multiply
    8,442.51x = 11,650.64 × 4,665.57
  4. Step 4: Simplify right side
    8,442.51x = 54,356,853.14
  5. Step 5: Solve for x
    x = 54,356,853.14/8,442.51
  6. Step 6: Final answer
    x = 6,438.47

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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.