Home / 13,389.64-20,084.58-3,530.32

Finding the Fourth Proportional to 13,389.64, 20,084.58 and 3,530.32

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Solution

The fourth proportional to 13,389.64, 20,084.58 and 3,530.32 is: 5,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.64 : 20,084.58 = 3,530.32 : x
  2. Step 2: Convert to fraction form
    13,389.64/20,084.58 = 3,530.32/x
  3. Step 3: Cross multiply
    13,389.64x = 20,084.58 × 3,530.32
  4. Step 4: Simplify right side
    13,389.64x = 70,904,994.47
  5. Step 5: Solve for x
    x = 70,904,994.47/13,389.64
  6. Step 6: Final answer
    x = 5,295.51

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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.