Home / 14,279.34-21,428.74-8,585.25

Finding the Fourth Proportional to 14,279.34, 21,428.74 and 8,585.25

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Solution

The fourth proportional to 14,279.34, 21,428.74 and 8,585.25 is: 12,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.34 : 21,428.74 = 8,585.25 : x
  2. Step 2: Convert to fraction form
    14,279.34/21,428.74 = 8,585.25/x
  3. Step 3: Cross multiply
    14,279.34x = 21,428.74 × 8,585.25
  4. Step 4: Simplify right side
    14,279.34x = 183,971,020.46
  5. Step 5: Solve for x
    x = 183,971,020.46/14,279.34
  6. Step 6: Final answer
    x = 12,883.72

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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.