Home / 9,811.80-13,537.98-6,630.93

Finding the Fourth Proportional to 9,811.80, 13,537.98 and 6,630.93

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Solution

The fourth proportional to 9,811.80, 13,537.98 and 6,630.93 is: 9,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.80 : 13,537.98 = 6,630.93 : x
  2. Step 2: Convert to fraction form
    9,811.80/13,537.98 = 6,630.93/x
  3. Step 3: Cross multiply
    9,811.80x = 13,537.98 × 6,630.93
  4. Step 4: Simplify right side
    9,811.80x = 89,769,397.72
  5. Step 5: Solve for x
    x = 89,769,397.72/9,811.80
  6. Step 6: Final answer
    x = 9,149.13

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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.