Home / 15,350.80-21,178.56-10,048.64

Finding the Fourth Proportional to 15,350.80, 21,178.56 and 10,048.64

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Solution

The fourth proportional to 15,350.80, 21,178.56 and 10,048.64 is: 13,863.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.80 : 21,178.56 = 10,048.64 : x
  2. Step 2: Convert to fraction form
    15,350.80/21,178.56 = 10,048.64/x
  3. Step 3: Cross multiply
    15,350.80x = 21,178.56 × 10,048.64
  4. Step 4: Simplify right side
    15,350.80x = 212,815,725.16
  5. Step 5: Solve for x
    x = 212,815,725.16/15,350.80
  6. Step 6: Final answer
    x = 13,863.49

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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.