Home / 9,129.26-13,688.28-3,585.21

Finding the Fourth Proportional to 9,129.26, 13,688.28 and 3,585.21

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Solution

The fourth proportional to 9,129.26, 13,688.28 and 3,585.21 is: 5,375.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.26 : 13,688.28 = 3,585.21 : x
  2. Step 2: Convert to fraction form
    9,129.26/13,688.28 = 3,585.21/x
  3. Step 3: Cross multiply
    9,129.26x = 13,688.28 × 3,585.21
  4. Step 4: Simplify right side
    9,129.26x = 49,075,358.34
  5. Step 5: Solve for x
    x = 49,075,358.34/9,129.26
  6. Step 6: Final answer
    x = 5,375.61

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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.