Home / 19,140.13-26,414.25-10,643.12

Finding the Fourth Proportional to 19,140.13, 26,414.25 and 10,643.12

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Solution

The fourth proportional to 19,140.13, 26,414.25 and 10,643.12 is: 14,687.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.13 : 26,414.25 = 10,643.12 : x
  2. Step 2: Convert to fraction form
    19,140.13/26,414.25 = 10,643.12/x
  3. Step 3: Cross multiply
    19,140.13x = 26,414.25 × 10,643.12
  4. Step 4: Simplify right side
    19,140.13x = 281,129,900.39
  5. Step 5: Solve for x
    x = 281,129,900.39/19,140.13
  6. Step 6: Final answer
    x = 14,687.99

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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.