Home / 8,101.04-12,152.86-3,421.75

Finding the Fourth Proportional to 8,101.04, 12,152.86 and 3,421.75

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Solution

The fourth proportional to 8,101.04, 12,152.86 and 3,421.75 is: 5,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.04 : 12,152.86 = 3,421.75 : x
  2. Step 2: Convert to fraction form
    8,101.04/12,152.86 = 3,421.75/x
  3. Step 3: Cross multiply
    8,101.04x = 12,152.86 × 3,421.75
  4. Step 4: Simplify right side
    8,101.04x = 41,584,048.71
  5. Step 5: Solve for x
    x = 41,584,048.71/8,101.04
  6. Step 6: Final answer
    x = 5,133.17

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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.