Home / 21,395.68-29,525.76-11,964.16

Finding the Fourth Proportional to 21,395.68, 29,525.76 and 11,964.16

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Solution

The fourth proportional to 21,395.68, 29,525.76 and 11,964.16 is: 16,510.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.68 : 29,525.76 = 11,964.16 : x
  2. Step 2: Convert to fraction form
    21,395.68/29,525.76 = 11,964.16/x
  3. Step 3: Cross multiply
    21,395.68x = 29,525.76 × 11,964.16
  4. Step 4: Simplify right side
    21,395.68x = 353,250,916.76
  5. Step 5: Solve for x
    x = 353,250,916.76/21,395.68
  6. Step 6: Final answer
    x = 16,510.39

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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.