Home / 19,679.76-27,158.08-10,727.28

Finding the Fourth Proportional to 19,679.76, 27,158.08 and 10,727.28

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Solution

The fourth proportional to 19,679.76, 27,158.08 and 10,727.28 is: 14,803.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.76 : 27,158.08 = 10,727.28 : x
  2. Step 2: Convert to fraction form
    19,679.76/27,158.08 = 10,727.28/x
  3. Step 3: Cross multiply
    19,679.76x = 27,158.08 × 10,727.28
  4. Step 4: Simplify right side
    19,679.76x = 291,332,328.42
  5. Step 5: Solve for x
    x = 291,332,328.42/19,679.76
  6. Step 6: Final answer
    x = 14,803.65

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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.