Home / 14,101.18-21,153.63-5,215.30

Finding the Fourth Proportional to 14,101.18, 21,153.63 and 5,215.30

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Solution

The fourth proportional to 14,101.18, 21,153.63 and 5,215.30 is: 7,823.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.18 : 21,153.63 = 5,215.30 : x
  2. Step 2: Convert to fraction form
    14,101.18/21,153.63 = 5,215.30/x
  3. Step 3: Cross multiply
    14,101.18x = 21,153.63 × 5,215.30
  4. Step 4: Simplify right side
    14,101.18x = 110,322,526.54
  5. Step 5: Solve for x
    x = 110,322,526.54/14,101.18
  6. Step 6: Final answer
    x = 7,823.64

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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.