Home / 14,226.24-19,630.40-7,938.88

Finding the Fourth Proportional to 14,226.24, 19,630.40 and 7,938.88

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Solution

The fourth proportional to 14,226.24, 19,630.40 and 7,938.88 is: 10,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,226.24 : 19,630.40 = 7,938.88 : x
  2. Step 2: Convert to fraction form
    14,226.24/19,630.40 = 7,938.88/x
  3. Step 3: Cross multiply
    14,226.24x = 19,630.40 × 7,938.88
  4. Step 4: Simplify right side
    14,226.24x = 155,843,389.95
  5. Step 5: Solve for x
    x = 155,843,389.95/14,226.24
  6. Step 6: Final answer
    x = 10,954.64

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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.