Home / 15,767.16-21,758.52-8,693.64

Finding the Fourth Proportional to 15,767.16, 21,758.52 and 8,693.64

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Solution

The fourth proportional to 15,767.16, 21,758.52 and 8,693.64 is: 11,997.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.16 : 21,758.52 = 8,693.64 : x
  2. Step 2: Convert to fraction form
    15,767.16/21,758.52 = 8,693.64/x
  3. Step 3: Cross multiply
    15,767.16x = 21,758.52 × 8,693.64
  4. Step 4: Simplify right side
    15,767.16x = 189,160,739.81
  5. Step 5: Solve for x
    x = 189,160,739.81/15,767.16
  6. Step 6: Final answer
    x = 11,997.13

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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.