Home / 8,890.36-12,259.62-5,352.88

Finding the Fourth Proportional to 8,890.36, 12,259.62 and 5,352.88

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Solution

The fourth proportional to 8,890.36, 12,259.62 and 5,352.88 is: 7,381.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.36 : 12,259.62 = 5,352.88 : x
  2. Step 2: Convert to fraction form
    8,890.36/12,259.62 = 5,352.88/x
  3. Step 3: Cross multiply
    8,890.36x = 12,259.62 × 5,352.88
  4. Step 4: Simplify right side
    8,890.36x = 65,624,274.71
  5. Step 5: Solve for x
    x = 65,624,274.71/8,890.36
  6. Step 6: Final answer
    x = 7,381.51

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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.