Home / 10,865.07-14,986.96-6,613.11

Finding the Fourth Proportional to 10,865.07, 14,986.96 and 6,613.11

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Solution

The fourth proportional to 10,865.07, 14,986.96 and 6,613.11 is: 9,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.07 : 14,986.96 = 6,613.11 : x
  2. Step 2: Convert to fraction form
    10,865.07/14,986.96 = 6,613.11/x
  3. Step 3: Cross multiply
    10,865.07x = 14,986.96 × 6,613.11
  4. Step 4: Simplify right side
    10,865.07x = 99,110,398.51
  5. Step 5: Solve for x
    x = 99,110,398.51/10,865.07
  6. Step 6: Final answer
    x = 9,121.93

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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.