Home / 13,141.76-19,712.63-3,281.02

Finding the Fourth Proportional to 13,141.76, 19,712.63 and 3,281.02

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Solution

The fourth proportional to 13,141.76, 19,712.63 and 3,281.02 is: 4,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141.76 : 19,712.63 = 3,281.02 : x
  2. Step 2: Convert to fraction form
    13,141.76/19,712.63 = 3,281.02/x
  3. Step 3: Cross multiply
    13,141.76x = 19,712.63 × 3,281.02
  4. Step 4: Simplify right side
    13,141.76x = 64,677,492.20
  5. Step 5: Solve for x
    x = 64,677,492.20/13,141.76
  6. Step 6: Final answer
    x = 4,921.53

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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.