Home / 14,239.85-21,362.21-4,378.91

Finding the Fourth Proportional to 14,239.85, 21,362.21 and 4,378.91

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Solution

The fourth proportional to 14,239.85, 21,362.21 and 4,378.91 is: 6,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.85 : 21,362.21 = 4,378.91 : x
  2. Step 2: Convert to fraction form
    14,239.85/21,362.21 = 4,378.91/x
  3. Step 3: Cross multiply
    14,239.85x = 21,362.21 × 4,378.91
  4. Step 4: Simplify right side
    14,239.85x = 93,543,259.34
  5. Step 5: Solve for x
    x = 93,543,259.34/14,239.85
  6. Step 6: Final answer
    x = 6,569.12

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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.