Home / 14,218.84-21,328.26-7,288.92

Finding the Fourth Proportional to 14,218.84, 21,328.26 and 7,288.92

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Solution

The fourth proportional to 14,218.84, 21,328.26 and 7,288.92 is: 10,933.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.84 : 21,328.26 = 7,288.92 : x
  2. Step 2: Convert to fraction form
    14,218.84/21,328.26 = 7,288.92/x
  3. Step 3: Cross multiply
    14,218.84x = 21,328.26 × 7,288.92
  4. Step 4: Simplify right side
    14,218.84x = 155,459,980.88
  5. Step 5: Solve for x
    x = 155,459,980.88/14,218.84
  6. Step 6: Final answer
    x = 10,933.38

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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.