Home / 19,679.38-27,157.56-10,726.90

Finding the Fourth Proportional to 19,679.38, 27,157.56 and 10,726.90

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Solution

The fourth proportional to 19,679.38, 27,157.56 and 10,726.90 is: 14,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.38 : 27,157.56 = 10,726.90 : x
  2. Step 2: Convert to fraction form
    19,679.38/27,157.56 = 10,726.90/x
  3. Step 3: Cross multiply
    19,679.38x = 27,157.56 × 10,726.90
  4. Step 4: Simplify right side
    19,679.38x = 291,316,430.36
  5. Step 5: Solve for x
    x = 291,316,430.36/19,679.38
  6. Step 6: Final answer
    x = 14,803.13

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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.