Home / 15,964.40-22,028.28-8,889.50

Finding the Fourth Proportional to 15,964.40, 22,028.28 and 8,889.50

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Solution

The fourth proportional to 15,964.40, 22,028.28 and 8,889.50 is: 12,266.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,964.40 : 22,028.28 = 8,889.50 : x
  2. Step 2: Convert to fraction form
    15,964.40/22,028.28 = 8,889.50/x
  3. Step 3: Cross multiply
    15,964.40x = 22,028.28 × 8,889.50
  4. Step 4: Simplify right side
    15,964.40x = 195,820,395.06
  5. Step 5: Solve for x
    x = 195,820,395.06/15,964.40
  6. Step 6: Final answer
    x = 12,266.07

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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.