Home / 19,656.84-27,126.78-11,158.74

Finding the Fourth Proportional to 19,656.84, 27,126.78 and 11,158.74

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Solution

The fourth proportional to 19,656.84, 27,126.78 and 11,158.74 is: 15,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656.84 : 27,126.78 = 11,158.74 : x
  2. Step 2: Convert to fraction form
    19,656.84/27,126.78 = 11,158.74/x
  3. Step 3: Cross multiply
    19,656.84x = 27,126.78 × 11,158.74
  4. Step 4: Simplify right side
    19,656.84x = 302,700,685.06
  5. Step 5: Solve for x
    x = 302,700,685.06/19,656.84
  6. Step 6: Final answer
    x = 15,399.25

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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.