Home / 21,266.95-29,348.16-11,706.63

Finding the Fourth Proportional to 21,266.95, 29,348.16 and 11,706.63

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Solution

The fourth proportional to 21,266.95, 29,348.16 and 11,706.63 is: 16,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.95 : 29,348.16 = 11,706.63 : x
  2. Step 2: Convert to fraction form
    21,266.95/29,348.16 = 11,706.63/x
  3. Step 3: Cross multiply
    21,266.95x = 29,348.16 × 11,706.63
  4. Step 4: Simplify right side
    21,266.95x = 343,568,050.30
  5. Step 5: Solve for x
    x = 343,568,050.30/21,266.95
  6. Step 6: Final answer
    x = 16,155.02

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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.