Home / 8,790.08-12,130-5,251.20

Finding the Fourth Proportional to 8,790.08, 12,130 and 5,251.20

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Solution

The fourth proportional to 8,790.08, 12,130 and 5,251.20 is: 7,246.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.08 : 12,130 = 5,251.20 : x
  2. Step 2: Convert to fraction form
    8,790.08/12,130 = 5,251.20/x
  3. Step 3: Cross multiply
    8,790.08x = 12,130 × 5,251.20
  4. Step 4: Simplify right side
    8,790.08x = 63,697,056
  5. Step 5: Solve for x
    x = 63,697,056/8,790.08
  6. Step 6: Final answer
    x = 7,246.47

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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.