Home / 15,938.05-21,993.93-8,864.32

Finding the Fourth Proportional to 15,938.05, 21,993.93 and 8,864.32

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Solution

The fourth proportional to 15,938.05, 21,993.93 and 8,864.32 is: 12,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.05 : 21,993.93 = 8,864.32 : x
  2. Step 2: Convert to fraction form
    15,938.05/21,993.93 = 8,864.32/x
  3. Step 3: Cross multiply
    15,938.05x = 21,993.93 × 8,864.32
  4. Step 4: Simplify right side
    15,938.05x = 194,961,233.58
  5. Step 5: Solve for x
    x = 194,961,233.58/15,938.05
  6. Step 6: Final answer
    x = 12,232.44

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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.