Home / 13,009.84-19,508.20-5,987.76

Finding the Fourth Proportional to 13,009.84, 19,508.20 and 5,987.76

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Solution

The fourth proportional to 13,009.84, 19,508.20 and 5,987.76 is: 8,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.84 : 19,508.20 = 5,987.76 : x
  2. Step 2: Convert to fraction form
    13,009.84/19,508.20 = 5,987.76/x
  3. Step 3: Cross multiply
    13,009.84x = 19,508.20 × 5,987.76
  4. Step 4: Simplify right side
    13,009.84x = 116,810,419.63
  5. Step 5: Solve for x
    x = 116,810,419.63/13,009.84
  6. Step 6: Final answer
    x = 8,978.62

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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.