Home / 8,157.16-11,256.58-4,431.08

Finding the Fourth Proportional to 8,157.16, 11,256.58 and 4,431.08

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Solution

The fourth proportional to 8,157.16, 11,256.58 and 4,431.08 is: 6,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.16 : 11,256.58 = 4,431.08 : x
  2. Step 2: Convert to fraction form
    8,157.16/11,256.58 = 4,431.08/x
  3. Step 3: Cross multiply
    8,157.16x = 11,256.58 × 4,431.08
  4. Step 4: Simplify right side
    8,157.16x = 49,878,806.51
  5. Step 5: Solve for x
    x = 49,878,806.51/8,157.16
  6. Step 6: Final answer
    x = 6,114.73

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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.