Home / 8,772.34-13,158.75-2,928.74

Finding the Fourth Proportional to 8,772.34, 13,158.75 and 2,928.74

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Solution

The fourth proportional to 8,772.34, 13,158.75 and 2,928.74 is: 4,393.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.34 : 13,158.75 = 2,928.74 : x
  2. Step 2: Convert to fraction form
    8,772.34/13,158.75 = 2,928.74/x
  3. Step 3: Cross multiply
    8,772.34x = 13,158.75 × 2,928.74
  4. Step 4: Simplify right side
    8,772.34x = 38,538,557.48
  5. Step 5: Solve for x
    x = 38,538,557.48/8,772.34
  6. Step 6: Final answer
    x = 4,393.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.