Home / 14,279.06-21,420.88-4,916.76

Finding the Fourth Proportional to 14,279.06, 21,420.88 and 4,916.76

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Solution

The fourth proportional to 14,279.06, 21,420.88 and 4,916.76 is: 7,375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.06 : 21,420.88 = 4,916.76 : x
  2. Step 2: Convert to fraction form
    14,279.06/21,420.88 = 4,916.76/x
  3. Step 3: Cross multiply
    14,279.06x = 21,420.88 × 4,916.76
  4. Step 4: Simplify right side
    14,279.06x = 105,321,325.95
  5. Step 5: Solve for x
    x = 105,321,325.95/14,279.06
  6. Step 6: Final answer
    x = 7,375.93

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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.