Home / 19,655.79-27,127.38-11,160.56

Finding the Fourth Proportional to 19,655.79, 27,127.38 and 11,160.56

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Solution

The fourth proportional to 19,655.79, 27,127.38 and 11,160.56 is: 15,402.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.79 : 27,127.38 = 11,160.56 : x
  2. Step 2: Convert to fraction form
    19,655.79/27,127.38 = 11,160.56/x
  3. Step 3: Cross multiply
    19,655.79x = 27,127.38 × 11,160.56
  4. Step 4: Simplify right side
    19,655.79x = 302,756,616.50
  5. Step 5: Solve for x
    x = 302,756,616.50/19,655.79
  6. Step 6: Final answer
    x = 15,402.92

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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.