Home / 7,918.12-11,819.45-7,332.52

Finding the Fourth Proportional to 7,918.12, 11,819.45 and 7,332.52

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Solution

The fourth proportional to 7,918.12, 11,819.45 and 7,332.52 is: 10,945.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.12 : 11,819.45 = 7,332.52 : x
  2. Step 2: Convert to fraction form
    7,918.12/11,819.45 = 7,332.52/x
  3. Step 3: Cross multiply
    7,918.12x = 11,819.45 × 7,332.52
  4. Step 4: Simplify right side
    7,918.12x = 86,666,353.51
  5. Step 5: Solve for x
    x = 86,666,353.51/7,918.12
  6. Step 6: Final answer
    x = 10,945.32

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.