Home / 19,864.90-27,406.77-11,363.92

Finding the Fourth Proportional to 19,864.90, 27,406.77 and 11,363.92

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Solution

The fourth proportional to 19,864.90, 27,406.77 and 11,363.92 is: 15,678.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.90 : 27,406.77 = 11,363.92 : x
  2. Step 2: Convert to fraction form
    19,864.90/27,406.77 = 11,363.92/x
  3. Step 3: Cross multiply
    19,864.90x = 27,406.77 × 11,363.92
  4. Step 4: Simplify right side
    19,864.90x = 311,448,341.74
  5. Step 5: Solve for x
    x = 311,448,341.74/19,864.90
  6. Step 6: Final answer
    x = 15,678.32

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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.