Home / 15,885.31-21,924.35-8,814.01

Finding the Fourth Proportional to 15,885.31, 21,924.35 and 8,814.01

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Solution

The fourth proportional to 15,885.31, 21,924.35 and 8,814.01 is: 12,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,885.31 : 21,924.35 = 8,814.01 : x
  2. Step 2: Convert to fraction form
    15,885.31/21,924.35 = 8,814.01/x
  3. Step 3: Cross multiply
    15,885.31x = 21,924.35 × 8,814.01
  4. Step 4: Simplify right side
    15,885.31x = 193,241,407.37
  5. Step 5: Solve for x
    x = 193,241,407.37/15,885.31
  6. Step 6: Final answer
    x = 12,164.79

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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.