Home / 19,679.20-27,157.12-10,726.70

Finding the Fourth Proportional to 19,679.20, 27,157.12 and 10,726.70

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Solution

The fourth proportional to 19,679.20, 27,157.12 and 10,726.70 is: 14,802.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.20 : 27,157.12 = 10,726.70 : x
  2. Step 2: Convert to fraction form
    19,679.20/27,157.12 = 10,726.70/x
  3. Step 3: Cross multiply
    19,679.20x = 27,157.12 × 10,726.70
  4. Step 4: Simplify right side
    19,679.20x = 291,306,116.50
  5. Step 5: Solve for x
    x = 291,306,116.50/19,679.20
  6. Step 6: Final answer
    x = 14,802.74

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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.