Home / 8,809.16-12,155.79-5,272.30

Finding the Fourth Proportional to 8,809.16, 12,155.79 and 5,272.30

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Solution

The fourth proportional to 8,809.16, 12,155.79 and 5,272.30 is: 7,275.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.16 : 12,155.79 = 5,272.30 : x
  2. Step 2: Convert to fraction form
    8,809.16/12,155.79 = 5,272.30/x
  3. Step 3: Cross multiply
    8,809.16x = 12,155.79 × 5,272.30
  4. Step 4: Simplify right side
    8,809.16x = 64,088,941.23
  5. Step 5: Solve for x
    x = 64,088,941.23/8,809.16
  6. Step 6: Final answer
    x = 7,275.26

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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.