Home / 19,660.56-27,130.53-11,162.47

Finding the Fourth Proportional to 19,660.56, 27,130.53 and 11,162.47

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Solution

The fourth proportional to 19,660.56, 27,130.53 and 11,162.47 is: 15,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.56 : 27,130.53 = 11,162.47 : x
  2. Step 2: Convert to fraction form
    19,660.56/27,130.53 = 11,162.47/x
  3. Step 3: Cross multiply
    19,660.56x = 27,130.53 × 11,162.47
  4. Step 4: Simplify right side
    19,660.56x = 302,843,774.57
  5. Step 5: Solve for x
    x = 302,843,774.57/19,660.56
  6. Step 6: Final answer
    x = 15,403.62

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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.