Home / 14,689.33-20,271.28-7,974.96

Finding the Fourth Proportional to 14,689.33, 20,271.28 and 7,974.96

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Solution

The fourth proportional to 14,689.33, 20,271.28 and 7,974.96 is: 11,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.33 : 20,271.28 = 7,974.96 : x
  2. Step 2: Convert to fraction form
    14,689.33/20,271.28 = 7,974.96/x
  3. Step 3: Cross multiply
    14,689.33x = 20,271.28 × 7,974.96
  4. Step 4: Simplify right side
    14,689.33x = 161,662,647.15
  5. Step 5: Solve for x
    x = 161,662,647.15/14,689.33
  6. Step 6: Final answer
    x = 11,005.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.