Home / 8,809.64-12,156.44-5,272.77

Finding the Fourth Proportional to 8,809.64, 12,156.44 and 5,272.77

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Solution

The fourth proportional to 8,809.64, 12,156.44 and 5,272.77 is: 7,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.64 : 12,156.44 = 5,272.77 : x
  2. Step 2: Convert to fraction form
    8,809.64/12,156.44 = 5,272.77/x
  3. Step 3: Cross multiply
    8,809.64x = 12,156.44 × 5,272.77
  4. Step 4: Simplify right side
    8,809.64x = 64,098,085.77
  5. Step 5: Solve for x
    x = 64,098,085.77/8,809.64
  6. Step 6: Final answer
    x = 7,275.91

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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.