Home / 13,484.80-18,609.27-7,515.83

Finding the Fourth Proportional to 13,484.80, 18,609.27 and 7,515.83

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Solution

The fourth proportional to 13,484.80, 18,609.27 and 7,515.83 is: 10,371.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.80 : 18,609.27 = 7,515.83 : x
  2. Step 2: Convert to fraction form
    13,484.80/18,609.27 = 7,515.83/x
  3. Step 3: Cross multiply
    13,484.80x = 18,609.27 × 7,515.83
  4. Step 4: Simplify right side
    13,484.80x = 139,864,154.76
  5. Step 5: Solve for x
    x = 139,864,154.76/13,484.80
  6. Step 6: Final answer
    x = 10,371.98

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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.