Home / 21,184.91-29,238.68-11,756.51

Finding the Fourth Proportional to 21,184.91, 29,238.68 and 11,756.51

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Solution

The fourth proportional to 21,184.91, 29,238.68 and 11,756.51 is: 16,225.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.91 : 29,238.68 = 11,756.51 : x
  2. Step 2: Convert to fraction form
    21,184.91/29,238.68 = 11,756.51/x
  3. Step 3: Cross multiply
    21,184.91x = 29,238.68 × 11,756.51
  4. Step 4: Simplify right side
    21,184.91x = 343,744,833.81
  5. Step 5: Solve for x
    x = 343,744,833.81/21,184.91
  6. Step 6: Final answer
    x = 16,225.93

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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.