Home / 8,967.68-12,374.64-5,190.08

Finding the Fourth Proportional to 8,967.68, 12,374.64 and 5,190.08

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Solution

The fourth proportional to 8,967.68, 12,374.64 and 5,190.08 is: 7,161.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967.68 : 12,374.64 = 5,190.08 : x
  2. Step 2: Convert to fraction form
    8,967.68/12,374.64 = 5,190.08/x
  3. Step 3: Cross multiply
    8,967.68x = 12,374.64 × 5,190.08
  4. Step 4: Simplify right side
    8,967.68x = 64,225,371.57
  5. Step 5: Solve for x
    x = 64,225,371.57/8,967.68
  6. Step 6: Final answer
    x = 7,161.87

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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.