Home / 11,020.48-15,200.73-7,039.81

Finding the Fourth Proportional to 11,020.48, 15,200.73 and 7,039.81

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Solution

The fourth proportional to 11,020.48, 15,200.73 and 7,039.81 is: 9,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.48 : 15,200.73 = 7,039.81 : x
  2. Step 2: Convert to fraction form
    11,020.48/15,200.73 = 7,039.81/x
  3. Step 3: Cross multiply
    11,020.48x = 15,200.73 × 7,039.81
  4. Step 4: Simplify right side
    11,020.48x = 107,010,251.06
  5. Step 5: Solve for x
    x = 107,010,251.06/11,020.48
  6. Step 6: Final answer
    x = 9,710.13

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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.