Home / 19,559.12-26,964.78-12,385.40

Finding the Fourth Proportional to 19,559.12, 26,964.78 and 12,385.40

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Solution

The fourth proportional to 19,559.12, 26,964.78 and 12,385.40 is: 17,074.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,559.12 : 26,964.78 = 12,385.40 : x
  2. Step 2: Convert to fraction form
    19,559.12/26,964.78 = 12,385.40/x
  3. Step 3: Cross multiply
    19,559.12x = 26,964.78 × 12,385.40
  4. Step 4: Simplify right side
    19,559.12x = 333,969,586.21
  5. Step 5: Solve for x
    x = 333,969,586.21/19,559.12
  6. Step 6: Final answer
    x = 17,074.88

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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.