Home / 8,172.77-11,278.25-4,587.81

Finding the Fourth Proportional to 8,172.77, 11,278.25 and 4,587.81

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Solution

The fourth proportional to 8,172.77, 11,278.25 and 4,587.81 is: 6,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.77 : 11,278.25 = 4,587.81 : x
  2. Step 2: Convert to fraction form
    8,172.77/11,278.25 = 4,587.81/x
  3. Step 3: Cross multiply
    8,172.77x = 11,278.25 × 4,587.81
  4. Step 4: Simplify right side
    8,172.77x = 51,742,445.91
  5. Step 5: Solve for x
    x = 51,742,445.91/8,172.77
  6. Step 6: Final answer
    x = 6,331.08

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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.