Home / 13,890.19-19,167.72-7,601.35

Finding the Fourth Proportional to 13,890.19, 19,167.72 and 7,601.35

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Solution

The fourth proportional to 13,890.19, 19,167.72 and 7,601.35 is: 10,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.19 : 19,167.72 = 7,601.35 : x
  2. Step 2: Convert to fraction form
    13,890.19/19,167.72 = 7,601.35/x
  3. Step 3: Cross multiply
    13,890.19x = 19,167.72 × 7,601.35
  4. Step 4: Simplify right side
    13,890.19x = 145,700,452.58
  5. Step 5: Solve for x
    x = 145,700,452.58/13,890.19
  6. Step 6: Final answer
    x = 10,489.45

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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.