Home / 12,295.56-16,967.88-6,990.71

Finding the Fourth Proportional to 12,295.56, 16,967.88 and 6,990.71

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Solution

The fourth proportional to 12,295.56, 16,967.88 and 6,990.71 is: 9,647.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.56 : 16,967.88 = 6,990.71 : x
  2. Step 2: Convert to fraction form
    12,295.56/16,967.88 = 6,990.71/x
  3. Step 3: Cross multiply
    12,295.56x = 16,967.88 × 6,990.71
  4. Step 4: Simplify right side
    12,295.56x = 118,617,443.56
  5. Step 5: Solve for x
    x = 118,617,443.56/12,295.56
  6. Step 6: Final answer
    x = 9,647.17

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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.