Home / 8,810.64-12,154.32-5,272.56

Finding the Fourth Proportional to 8,810.64, 12,154.32 and 5,272.56

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Solution

The fourth proportional to 8,810.64, 12,154.32 and 5,272.56 is: 7,273.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.64 : 12,154.32 = 5,272.56 : x
  2. Step 2: Convert to fraction form
    8,810.64/12,154.32 = 5,272.56/x
  3. Step 3: Cross multiply
    8,810.64x = 12,154.32 × 5,272.56
  4. Step 4: Simplify right side
    8,810.64x = 64,084,381.46
  5. Step 5: Solve for x
    x = 64,084,381.46/8,810.64
  6. Step 6: Final answer
    x = 7,273.52

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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.