Home / 13,669.56-18,864.88-7,700.68

Finding the Fourth Proportional to 13,669.56, 18,864.88 and 7,700.68

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Solution

The fourth proportional to 13,669.56, 18,864.88 and 7,700.68 is: 10,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.56 : 18,864.88 = 7,700.68 : x
  2. Step 2: Convert to fraction form
    13,669.56/18,864.88 = 7,700.68/x
  3. Step 3: Cross multiply
    13,669.56x = 18,864.88 × 7,700.68
  4. Step 4: Simplify right side
    13,669.56x = 145,272,404.12
  5. Step 5: Solve for x
    x = 145,272,404.12/13,669.56
  6. Step 6: Final answer
    x = 10,627.44

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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.