Home / 14,288.70-21,435.06-4,428.74

Finding the Fourth Proportional to 14,288.70, 21,435.06 and 4,428.74

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Solution

The fourth proportional to 14,288.70, 21,435.06 and 4,428.74 is: 6,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.70 : 21,435.06 = 4,428.74 : x
  2. Step 2: Convert to fraction form
    14,288.70/21,435.06 = 4,428.74/x
  3. Step 3: Cross multiply
    14,288.70x = 21,435.06 × 4,428.74
  4. Step 4: Simplify right side
    14,288.70x = 94,930,307.62
  5. Step 5: Solve for x
    x = 94,930,307.62/14,288.70
  6. Step 6: Final answer
    x = 6,643.73

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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.