Home / 19,745.76-27,246.51-12,681.75

Finding the Fourth Proportional to 19,745.76, 27,246.51 and 12,681.75

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Solution

The fourth proportional to 19,745.76, 27,246.51 and 12,681.75 is: 17,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,745.76 : 27,246.51 = 12,681.75 : x
  2. Step 2: Convert to fraction form
    19,745.76/27,246.51 = 12,681.75/x
  3. Step 3: Cross multiply
    19,745.76x = 27,246.51 × 12,681.75
  4. Step 4: Simplify right side
    19,745.76x = 345,533,428.19
  5. Step 5: Solve for x
    x = 345,533,428.19/19,745.76
  6. Step 6: Final answer
    x = 17,499.12

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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.