Home / 7,351.45-10,138.07-5,670.19

Finding the Fourth Proportional to 7,351.45, 10,138.07 and 5,670.19

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Solution

The fourth proportional to 7,351.45, 10,138.07 and 5,670.19 is: 7,819.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.45 : 10,138.07 = 5,670.19 : x
  2. Step 2: Convert to fraction form
    7,351.45/10,138.07 = 5,670.19/x
  3. Step 3: Cross multiply
    7,351.45x = 10,138.07 × 5,670.19
  4. Step 4: Simplify right side
    7,351.45x = 57,484,783.13
  5. Step 5: Solve for x
    x = 57,484,783.13/7,351.45
  6. Step 6: Final answer
    x = 7,819.52

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Half scale
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Double scale
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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.