Home / 8,525.32-12,789.60-2,980.24

Finding the Fourth Proportional to 8,525.32, 12,789.60 and 2,980.24

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Solution

The fourth proportional to 8,525.32, 12,789.60 and 2,980.24 is: 4,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,525.32 : 12,789.60 = 2,980.24 : x
  2. Step 2: Convert to fraction form
    8,525.32/12,789.60 = 2,980.24/x
  3. Step 3: Cross multiply
    8,525.32x = 12,789.60 × 2,980.24
  4. Step 4: Simplify right side
    8,525.32x = 38,116,077.50
  5. Step 5: Solve for x
    x = 38,116,077.50/8,525.32
  6. Step 6: Final answer
    x = 4,470.93

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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.