Home / 15,352.20-21,184.16-9,684.81

Finding the Fourth Proportional to 15,352.20, 21,184.16 and 9,684.81

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Solution

The fourth proportional to 15,352.20, 21,184.16 and 9,684.81 is: 13,363.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,352.20 : 21,184.16 = 9,684.81 : x
  2. Step 2: Convert to fraction form
    15,352.20/21,184.16 = 9,684.81/x
  3. Step 3: Cross multiply
    15,352.20x = 21,184.16 × 9,684.81
  4. Step 4: Simplify right side
    15,352.20x = 205,164,516.19
  5. Step 5: Solve for x
    x = 205,164,516.19/15,352.20
  6. Step 6: Final answer
    x = 13,363.85

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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.