Home / 12,311.06-16,988.99-7,005.74

Finding the Fourth Proportional to 12,311.06, 16,988.99 and 7,005.74

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Solution

The fourth proportional to 12,311.06, 16,988.99 and 7,005.74 is: 9,667.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.06 : 16,988.99 = 7,005.74 : x
  2. Step 2: Convert to fraction form
    12,311.06/16,988.99 = 7,005.74/x
  3. Step 3: Cross multiply
    12,311.06x = 16,988.99 × 7,005.74
  4. Step 4: Simplify right side
    12,311.06x = 119,020,326.83
  5. Step 5: Solve for x
    x = 119,020,326.83/12,311.06
  6. Step 6: Final answer
    x = 9,667.76

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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.