Home / 13,133.32-19,700.25-7,326.88

Finding the Fourth Proportional to 13,133.32, 19,700.25 and 7,326.88

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Solution

The fourth proportional to 13,133.32, 19,700.25 and 7,326.88 is: 10,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.32 : 19,700.25 = 7,326.88 : x
  2. Step 2: Convert to fraction form
    13,133.32/19,700.25 = 7,326.88/x
  3. Step 3: Cross multiply
    13,133.32x = 19,700.25 × 7,326.88
  4. Step 4: Simplify right side
    13,133.32x = 144,341,367.72
  5. Step 5: Solve for x
    x = 144,341,367.72/13,133.32
  6. Step 6: Final answer
    x = 10,990.47

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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.