Home / 19,649.61-27,117.04-11,151.56

Finding the Fourth Proportional to 19,649.61, 27,117.04 and 11,151.56

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Solution

The fourth proportional to 19,649.61, 27,117.04 and 11,151.56 is: 15,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.61 : 27,117.04 = 11,151.56 : x
  2. Step 2: Convert to fraction form
    19,649.61/27,117.04 = 11,151.56/x
  3. Step 3: Cross multiply
    19,649.61x = 27,117.04 × 11,151.56
  4. Step 4: Simplify right side
    19,649.61x = 302,397,298.58
  5. Step 5: Solve for x
    x = 302,397,298.58/19,649.61
  6. Step 6: Final answer
    x = 15,389.48

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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.