Home / 14,211.20-21,315.11-4,357.28

Finding the Fourth Proportional to 14,211.20, 21,315.11 and 4,357.28

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Solution

The fourth proportional to 14,211.20, 21,315.11 and 4,357.28 is: 6,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.20 : 21,315.11 = 4,357.28 : x
  2. Step 2: Convert to fraction form
    14,211.20/21,315.11 = 4,357.28/x
  3. Step 3: Cross multiply
    14,211.20x = 21,315.11 × 4,357.28
  4. Step 4: Simplify right side
    14,211.20x = 92,875,774.14
  5. Step 5: Solve for x
    x = 92,875,774.14/14,211.20
  6. Step 6: Final answer
    x = 6,535.40

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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.