Home / 7,547.82-11,311.19-6,431.41

Finding the Fourth Proportional to 7,547.82, 11,311.19 and 6,431.41

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Solution

The fourth proportional to 7,547.82, 11,311.19 and 6,431.41 is: 9,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.82 : 11,311.19 = 6,431.41 : x
  2. Step 2: Convert to fraction form
    7,547.82/11,311.19 = 6,431.41/x
  3. Step 3: Cross multiply
    7,547.82x = 11,311.19 × 6,431.41
  4. Step 4: Simplify right side
    7,547.82x = 72,746,811.76
  5. Step 5: Solve for x
    x = 72,746,811.76/7,547.82
  6. Step 6: Final answer
    x = 9,638.12

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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.