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Finding the Fourth Proportional to 8,973.89, 13,461.28 and 3,427.71

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Solution

The fourth proportional to 8,973.89, 13,461.28 and 3,427.71 is: 5,141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.89 : 13,461.28 = 3,427.71 : x
  2. Step 2: Convert to fraction form
    8,973.89/13,461.28 = 3,427.71/x
  3. Step 3: Cross multiply
    8,973.89x = 13,461.28 × 3,427.71
  4. Step 4: Simplify right side
    8,973.89x = 46,141,364.07
  5. Step 5: Solve for x
    x = 46,141,364.07/8,973.89
  6. Step 6: Final answer
    x = 5,141.74

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1.5x scale

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.