Home / 7,345.09-10,135.20-4,320.35

Finding the Fourth Proportional to 7,345.09, 10,135.20 and 4,320.35

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Solution

The fourth proportional to 7,345.09, 10,135.20 and 4,320.35 is: 5,961.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.09 : 10,135.20 = 4,320.35 : x
  2. Step 2: Convert to fraction form
    7,345.09/10,135.20 = 4,320.35/x
  3. Step 3: Cross multiply
    7,345.09x = 10,135.20 × 4,320.35
  4. Step 4: Simplify right side
    7,345.09x = 43,787,611.32
  5. Step 5: Solve for x
    x = 43,787,611.32/7,345.09
  6. Step 6: Final answer
    x = 5,961.48

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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.