Home / 13,669.58-18,864.09-7,701.35

Finding the Fourth Proportional to 13,669.58, 18,864.09 and 7,701.35

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Solution

The fourth proportional to 13,669.58, 18,864.09 and 7,701.35 is: 10,627.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.58 : 18,864.09 = 7,701.35 : x
  2. Step 2: Convert to fraction form
    13,669.58/18,864.09 = 7,701.35/x
  3. Step 3: Cross multiply
    13,669.58x = 18,864.09 × 7,701.35
  4. Step 4: Simplify right side
    13,669.58x = 145,278,865.20
  5. Step 5: Solve for x
    x = 145,278,865.20/13,669.58
  6. Step 6: Final answer
    x = 10,627.89

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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.