Home / 15,860.28-21,891.70-9,573.06

Finding the Fourth Proportional to 15,860.28, 21,891.70 and 9,573.06

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Solution

The fourth proportional to 15,860.28, 21,891.70 and 9,573.06 is: 13,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,860.28 : 21,891.70 = 9,573.06 : x
  2. Step 2: Convert to fraction form
    15,860.28/21,891.70 = 9,573.06/x
  3. Step 3: Cross multiply
    15,860.28x = 21,891.70 × 9,573.06
  4. Step 4: Simplify right side
    15,860.28x = 209,570,557.60
  5. Step 5: Solve for x
    x = 209,570,557.60/15,860.28
  6. Step 6: Final answer
    x = 13,213.55

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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.