Home / 7,345.68-11,019.20-2,415.32

Finding the Fourth Proportional to 7,345.68, 11,019.20 and 2,415.32

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Solution

The fourth proportional to 7,345.68, 11,019.20 and 2,415.32 is: 3,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.68 : 11,019.20 = 2,415.32 : x
  2. Step 2: Convert to fraction form
    7,345.68/11,019.20 = 2,415.32/x
  3. Step 3: Cross multiply
    7,345.68x = 11,019.20 × 2,415.32
  4. Step 4: Simplify right side
    7,345.68x = 26,614,894.14
  5. Step 5: Solve for x
    x = 26,614,894.14/7,345.68
  6. Step 6: Final answer
    x = 3,623.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.