Home / 15,860.54-21,877.64-10,202.66

Finding the Fourth Proportional to 15,860.54, 21,877.64 and 10,202.66

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Solution

The fourth proportional to 15,860.54, 21,877.64 and 10,202.66 is: 14,073.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,860.54 : 21,877.64 = 10,202.66 : x
  2. Step 2: Convert to fraction form
    15,860.54/21,877.64 = 10,202.66/x
  3. Step 3: Cross multiply
    15,860.54x = 21,877.64 × 10,202.66
  4. Step 4: Simplify right side
    15,860.54x = 223,209,962.12
  5. Step 5: Solve for x
    x = 223,209,962.12/15,860.54
  6. Step 6: Final answer
    x = 14,073.29

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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.