Home / 13,278.00-19,920.51-6,616.46

Finding the Fourth Proportional to 13,278.00, 19,920.51 and 6,616.46

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Solution

The fourth proportional to 13,278.00, 19,920.51 and 6,616.46 is: 9,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.00 : 19,920.51 = 6,616.46 : x
  2. Step 2: Convert to fraction form
    13,278.00/19,920.51 = 6,616.46/x
  3. Step 3: Cross multiply
    13,278.00x = 19,920.51 × 6,616.46
  4. Step 4: Simplify right side
    13,278.00x = 131,803,232.76
  5. Step 5: Solve for x
    x = 131,803,232.76/13,278.00
  6. Step 6: Final answer
    x = 9,926.44

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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.