Home / 14,266.64-19,689-7,981.04

Finding the Fourth Proportional to 14,266.64, 19,689 and 7,981.04

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Solution

The fourth proportional to 14,266.64, 19,689 and 7,981.04 is: 11,014.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.64 : 19,689 = 7,981.04 : x
  2. Step 2: Convert to fraction form
    14,266.64/19,689 = 7,981.04/x
  3. Step 3: Cross multiply
    14,266.64x = 19,689 × 7,981.04
  4. Step 4: Simplify right side
    14,266.64x = 157,138,696.56
  5. Step 5: Solve for x
    x = 157,138,696.56/14,266.64
  6. Step 6: Final answer
    x = 11,014.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.