Home / 13,118.24-19,677.54-7,311.76

Finding the Fourth Proportional to 13,118.24, 19,677.54 and 7,311.76

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Solution

The fourth proportional to 13,118.24, 19,677.54 and 7,311.76 is: 10,967.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.24 : 19,677.54 = 7,311.76 : x
  2. Step 2: Convert to fraction form
    13,118.24/19,677.54 = 7,311.76/x
  3. Step 3: Cross multiply
    13,118.24x = 19,677.54 × 7,311.76
  4. Step 4: Simplify right side
    13,118.24x = 143,877,449.87
  5. Step 5: Solve for x
    x = 143,877,449.87/13,118.24
  6. Step 6: Final answer
    x = 10,967.74

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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.