Home / 14,279.22-21,428.55-8,585.12

Finding the Fourth Proportional to 14,279.22, 21,428.55 and 8,585.12

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Solution

The fourth proportional to 14,279.22, 21,428.55 and 8,585.12 is: 12,883.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.22 : 21,428.55 = 8,585.12 : x
  2. Step 2: Convert to fraction form
    14,279.22/21,428.55 = 8,585.12/x
  3. Step 3: Cross multiply
    14,279.22x = 21,428.55 × 8,585.12
  4. Step 4: Simplify right side
    14,279.22x = 183,966,673.18
  5. Step 5: Solve for x
    x = 183,966,673.18/14,279.22
  6. Step 6: Final answer
    x = 12,883.52

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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.