Home / 13,962.42-20,963.07-7,041.78

Finding the Fourth Proportional to 13,962.42, 20,963.07 and 7,041.78

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Solution

The fourth proportional to 13,962.42, 20,963.07 and 7,041.78 is: 10,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.42 : 20,963.07 = 7,041.78 : x
  2. Step 2: Convert to fraction form
    13,962.42/20,963.07 = 7,041.78/x
  3. Step 3: Cross multiply
    13,962.42x = 20,963.07 × 7,041.78
  4. Step 4: Simplify right side
    13,962.42x = 147,617,327.06
  5. Step 5: Solve for x
    x = 147,617,327.06/13,962.42
  6. Step 6: Final answer
    x = 10,572.47

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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.