Home / 14,013.84-20,990.60-6,607.20

Finding the Fourth Proportional to 14,013.84, 20,990.60 and 6,607.20

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Solution

The fourth proportional to 14,013.84, 20,990.60 and 6,607.20 is: 9,896.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,013.84 : 20,990.60 = 6,607.20 : x
  2. Step 2: Convert to fraction form
    14,013.84/20,990.60 = 6,607.20/x
  3. Step 3: Cross multiply
    14,013.84x = 20,990.60 × 6,607.20
  4. Step 4: Simplify right side
    14,013.84x = 138,689,092.32
  5. Step 5: Solve for x
    x = 138,689,092.32/14,013.84
  6. Step 6: Final answer
    x = 9,896.58

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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.