Home / 14,005.95-20,990.76-5,676.23

Finding the Fourth Proportional to 14,005.95, 20,990.76 and 5,676.23

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Solution

The fourth proportional to 14,005.95, 20,990.76 and 5,676.23 is: 8,506.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.95 : 20,990.76 = 5,676.23 : x
  2. Step 2: Convert to fraction form
    14,005.95/20,990.76 = 5,676.23/x
  3. Step 3: Cross multiply
    14,005.95x = 20,990.76 × 5,676.23
  4. Step 4: Simplify right side
    14,005.95x = 119,148,412.83
  5. Step 5: Solve for x
    x = 119,148,412.83/14,005.95
  6. Step 6: Final answer
    x = 8,506.99

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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.