Home / 13,890.61-19,176.92-9,590.42

Finding the Fourth Proportional to 13,890.61, 19,176.92 and 9,590.42

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Solution

The fourth proportional to 13,890.61, 19,176.92 and 9,590.42 is: 13,240.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.61 : 19,176.92 = 9,590.42 : x
  2. Step 2: Convert to fraction form
    13,890.61/19,176.92 = 9,590.42/x
  3. Step 3: Cross multiply
    13,890.61x = 19,176.92 × 9,590.42
  4. Step 4: Simplify right side
    13,890.61x = 183,914,717.11
  5. Step 5: Solve for x
    x = 183,914,717.11/13,890.61
  6. Step 6: Final answer
    x = 13,240.22

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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.