Home / 14,219.84-21,329.76-7,289.92

Finding the Fourth Proportional to 14,219.84, 21,329.76 and 7,289.92

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Solution

The fourth proportional to 14,219.84, 21,329.76 and 7,289.92 is: 10,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.84 : 21,329.76 = 7,289.92 : x
  2. Step 2: Convert to fraction form
    14,219.84/21,329.76 = 7,289.92/x
  3. Step 3: Cross multiply
    14,219.84x = 21,329.76 × 7,289.92
  4. Step 4: Simplify right side
    14,219.84x = 155,492,244.02
  5. Step 5: Solve for x
    x = 155,492,244.02/14,219.84
  6. Step 6: Final answer
    x = 10,934.88

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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.