Home / 13,479.96-18,583.05-9,488.67

Finding the Fourth Proportional to 13,479.96, 18,583.05 and 9,488.67

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Solution

The fourth proportional to 13,479.96, 18,583.05 and 9,488.67 is: 13,080.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.96 : 18,583.05 = 9,488.67 : x
  2. Step 2: Convert to fraction form
    13,479.96/18,583.05 = 9,488.67/x
  3. Step 3: Cross multiply
    13,479.96x = 18,583.05 × 9,488.67
  4. Step 4: Simplify right side
    13,479.96x = 176,328,429.04
  5. Step 5: Solve for x
    x = 176,328,429.04/13,479.96
  6. Step 6: Final answer
    x = 13,080.78

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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.