Home / 8,607.35-11,873.12-5,415.62

Finding the Fourth Proportional to 8,607.35, 11,873.12 and 5,415.62

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Solution

The fourth proportional to 8,607.35, 11,873.12 and 5,415.62 is: 7,470.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.35 : 11,873.12 = 5,415.62 : x
  2. Step 2: Convert to fraction form
    8,607.35/11,873.12 = 5,415.62/x
  3. Step 3: Cross multiply
    8,607.35x = 11,873.12 × 5,415.62
  4. Step 4: Simplify right side
    8,607.35x = 64,300,219.69
  5. Step 5: Solve for x
    x = 64,300,219.69/8,607.35
  6. Step 6: Final answer
    x = 7,470.38

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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.