Home / 15,655.83-21,608.22-14,394.88

Finding the Fourth Proportional to 15,655.83, 21,608.22 and 14,394.88

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Solution

The fourth proportional to 15,655.83, 21,608.22 and 14,394.88 is: 19,867.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.83 : 21,608.22 = 14,394.88 : x
  2. Step 2: Convert to fraction form
    15,655.83/21,608.22 = 14,394.88/x
  3. Step 3: Cross multiply
    15,655.83x = 21,608.22 × 14,394.88
  4. Step 4: Simplify right side
    15,655.83x = 311,047,855.42
  5. Step 5: Solve for x
    x = 311,047,855.42/15,655.83
  6. Step 6: Final answer
    x = 19,867.87

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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.