Home / 15,614.60-21,547.97-8,540.94

Finding the Fourth Proportional to 15,614.60, 21,547.97 and 8,540.94

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Solution

The fourth proportional to 15,614.60, 21,547.97 and 8,540.94 is: 11,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.60 : 21,547.97 = 8,540.94 : x
  2. Step 2: Convert to fraction form
    15,614.60/21,547.97 = 8,540.94/x
  3. Step 3: Cross multiply
    15,614.60x = 21,547.97 × 8,540.94
  4. Step 4: Simplify right side
    15,614.60x = 184,039,918.89
  5. Step 5: Solve for x
    x = 184,039,918.89/15,614.60
  6. Step 6: Final answer
    x = 11,786.40

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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.