Home / 15,885.93-21,912.66-10,228.05

Finding the Fourth Proportional to 15,885.93, 21,912.66 and 10,228.05

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Solution

The fourth proportional to 15,885.93, 21,912.66 and 10,228.05 is: 14,108.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,885.93 : 21,912.66 = 10,228.05 : x
  2. Step 2: Convert to fraction form
    15,885.93/21,912.66 = 10,228.05/x
  3. Step 3: Cross multiply
    15,885.93x = 21,912.66 × 10,228.05
  4. Step 4: Simplify right side
    15,885.93x = 224,123,782.11
  5. Step 5: Solve for x
    x = 224,123,782.11/15,885.93
  6. Step 6: Final answer
    x = 14,108.32

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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.