Home / 14,125.28-21,162.09-6,615.06

Finding the Fourth Proportional to 14,125.28, 21,162.09 and 6,615.06

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Solution

The fourth proportional to 14,125.28, 21,162.09 and 6,615.06 is: 9,910.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.28 : 21,162.09 = 6,615.06 : x
  2. Step 2: Convert to fraction form
    14,125.28/21,162.09 = 6,615.06/x
  3. Step 3: Cross multiply
    14,125.28x = 21,162.09 × 6,615.06
  4. Step 4: Simplify right side
    14,125.28x = 139,988,495.08
  5. Step 5: Solve for x
    x = 139,988,495.08/14,125.28
  6. Step 6: Final answer
    x = 9,910.50

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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.