Home / 19,320.81-26,663.07-11,767.42

Finding the Fourth Proportional to 19,320.81, 26,663.07 and 11,767.42

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Solution

The fourth proportional to 19,320.81, 26,663.07 and 11,767.42 is: 16,239.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.81 : 26,663.07 = 11,767.42 : x
  2. Step 2: Convert to fraction form
    19,320.81/26,663.07 = 11,767.42/x
  3. Step 3: Cross multiply
    19,320.81x = 26,663.07 × 11,767.42
  4. Step 4: Simplify right side
    19,320.81x = 313,755,543.18
  5. Step 5: Solve for x
    x = 313,755,543.18/19,320.81
  6. Step 6: Final answer
    x = 16,239.25

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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.