Home / 10,384.24-15,556.20-9,220.72

Finding the Fourth Proportional to 10,384.24, 15,556.20 and 9,220.72

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Solution

The fourth proportional to 10,384.24, 15,556.20 and 9,220.72 is: 13,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,384.24 : 15,556.20 = 9,220.72 : x
  2. Step 2: Convert to fraction form
    10,384.24/15,556.20 = 9,220.72/x
  3. Step 3: Cross multiply
    10,384.24x = 15,556.20 × 9,220.72
  4. Step 4: Simplify right side
    10,384.24x = 143,439,364.46
  5. Step 5: Solve for x
    x = 143,439,364.46/10,384.24
  6. Step 6: Final answer
    x = 13,813.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.