Home / 14,085.39-21,128.58-6,686.04

Finding the Fourth Proportional to 14,085.39, 21,128.58 and 6,686.04

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Solution

The fourth proportional to 14,085.39, 21,128.58 and 6,686.04 is: 10,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.39 : 21,128.58 = 6,686.04 : x
  2. Step 2: Convert to fraction form
    14,085.39/21,128.58 = 6,686.04/x
  3. Step 3: Cross multiply
    14,085.39x = 21,128.58 × 6,686.04
  4. Step 4: Simplify right side
    14,085.39x = 141,266,531.02
  5. Step 5: Solve for x
    x = 141,266,531.02/14,085.39
  6. Step 6: Final answer
    x = 10,029.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.