Home / 13,558.69-18,711.91-7,590.92

Finding the Fourth Proportional to 13,558.69, 18,711.91 and 7,590.92

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Solution

The fourth proportional to 13,558.69, 18,711.91 and 7,590.92 is: 10,475.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.69 : 18,711.91 = 7,590.92 : x
  2. Step 2: Convert to fraction form
    13,558.69/18,711.91 = 7,590.92/x
  3. Step 3: Cross multiply
    13,558.69x = 18,711.91 × 7,590.92
  4. Step 4: Simplify right side
    13,558.69x = 142,040,527.79
  5. Step 5: Solve for x
    x = 142,040,527.79/13,558.69
  6. Step 6: Final answer
    x = 10,475.98

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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.