Home / 13,906.78-20,864.82-4,547.23

Finding the Fourth Proportional to 13,906.78, 20,864.82 and 4,547.23

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Solution

The fourth proportional to 13,906.78, 20,864.82 and 4,547.23 is: 6,822.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.78 : 20,864.82 = 4,547.23 : x
  2. Step 2: Convert to fraction form
    13,906.78/20,864.82 = 4,547.23/x
  3. Step 3: Cross multiply
    13,906.78x = 20,864.82 × 4,547.23
  4. Step 4: Simplify right side
    13,906.78x = 94,877,100.34
  5. Step 5: Solve for x
    x = 94,877,100.34/13,906.78
  6. Step 6: Final answer
    x = 6,822.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.