Home / 13,968.78-20,948.04-4,607.05

Finding the Fourth Proportional to 13,968.78, 20,948.04 and 4,607.05

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Solution

The fourth proportional to 13,968.78, 20,948.04 and 4,607.05 is: 6,908.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.78 : 20,948.04 = 4,607.05 : x
  2. Step 2: Convert to fraction form
    13,968.78/20,948.04 = 4,607.05/x
  3. Step 3: Cross multiply
    13,968.78x = 20,948.04 × 4,607.05
  4. Step 4: Simplify right side
    13,968.78x = 96,508,726.46
  5. Step 5: Solve for x
    x = 96,508,726.46/13,968.78
  6. Step 6: Final answer
    x = 6,908.89

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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.