Home / 19,471.30-26,852.75-12,754.47

Finding the Fourth Proportional to 19,471.30, 26,852.75 and 12,754.47

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Solution

The fourth proportional to 19,471.30, 26,852.75 and 12,754.47 is: 17,589.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.30 : 26,852.75 = 12,754.47 : x
  2. Step 2: Convert to fraction form
    19,471.30/26,852.75 = 12,754.47/x
  3. Step 3: Cross multiply
    19,471.30x = 26,852.75 × 12,754.47
  4. Step 4: Simplify right side
    19,471.30x = 342,492,679.05
  5. Step 5: Solve for x
    x = 342,492,679.05/19,471.30
  6. Step 6: Final answer
    x = 17,589.62

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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.