Home / 14,378.78-21,566.33-10,686.39

Finding the Fourth Proportional to 14,378.78, 21,566.33 and 10,686.39

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Solution

The fourth proportional to 14,378.78, 21,566.33 and 10,686.39 is: 16,028.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.78 : 21,566.33 = 10,686.39 : x
  2. Step 2: Convert to fraction form
    14,378.78/21,566.33 = 10,686.39/x
  3. Step 3: Cross multiply
    14,378.78x = 21,566.33 × 10,686.39
  4. Step 4: Simplify right side
    14,378.78x = 230,466,159.82
  5. Step 5: Solve for x
    x = 230,466,159.82/14,378.78
  6. Step 6: Final answer
    x = 16,028.22

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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.