Home / 15,488.91-21,367.83-9,197.64

Finding the Fourth Proportional to 15,488.91, 21,367.83 and 9,197.64

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Solution

The fourth proportional to 15,488.91, 21,367.83 and 9,197.64 is: 12,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,488.91 : 21,367.83 = 9,197.64 : x
  2. Step 2: Convert to fraction form
    15,488.91/21,367.83 = 9,197.64/x
  3. Step 3: Cross multiply
    15,488.91x = 21,367.83 × 9,197.64
  4. Step 4: Simplify right side
    15,488.91x = 196,533,607.92
  5. Step 5: Solve for x
    x = 196,533,607.92/15,488.91
  6. Step 6: Final answer
    x = 12,688.67

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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.