Home / 8,172.24-11,278.86-4,587.58

Finding the Fourth Proportional to 8,172.24, 11,278.86 and 4,587.58

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Solution

The fourth proportional to 8,172.24, 11,278.86 and 4,587.58 is: 6,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.24 : 11,278.86 = 4,587.58 : x
  2. Step 2: Convert to fraction form
    8,172.24/11,278.86 = 4,587.58/x
  3. Step 3: Cross multiply
    8,172.24x = 11,278.86 × 4,587.58
  4. Step 4: Simplify right side
    8,172.24x = 51,742,672.56
  5. Step 5: Solve for x
    x = 51,742,672.56/8,172.24
  6. Step 6: Final answer
    x = 6,331.52

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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.