Home / 7,345.73-10,138.87-4,203.74

Finding the Fourth Proportional to 7,345.73, 10,138.87 and 4,203.74

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Solution

The fourth proportional to 7,345.73, 10,138.87 and 4,203.74 is: 5,802.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.73 : 10,138.87 = 4,203.74 : x
  2. Step 2: Convert to fraction form
    7,345.73/10,138.87 = 4,203.74/x
  3. Step 3: Cross multiply
    7,345.73x = 10,138.87 × 4,203.74
  4. Step 4: Simplify right side
    7,345.73x = 42,621,203.98
  5. Step 5: Solve for x
    x = 42,621,203.98/7,345.73
  6. Step 6: Final answer
    x = 5,802.17

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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.