Home / 14,143.70-21,225.26-4,909.70

Finding the Fourth Proportional to 14,143.70, 21,225.26 and 4,909.70

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Solution

The fourth proportional to 14,143.70, 21,225.26 and 4,909.70 is: 7,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.70 : 21,225.26 = 4,909.70 : x
  2. Step 2: Convert to fraction form
    14,143.70/21,225.26 = 4,909.70/x
  3. Step 3: Cross multiply
    14,143.70x = 21,225.26 × 4,909.70
  4. Step 4: Simplify right side
    14,143.70x = 104,209,528.35
  5. Step 5: Solve for x
    x = 104,209,528.35/14,143.70
  6. Step 6: Final answer
    x = 7,367.91

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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.