Home / 13,389.64-20,084.48-5,490.70

Finding the Fourth Proportional to 13,389.64, 20,084.48 and 5,490.70

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Solution

The fourth proportional to 13,389.64, 20,084.48 and 5,490.70 is: 8,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.64 : 20,084.48 = 5,490.70 : x
  2. Step 2: Convert to fraction form
    13,389.64/20,084.48 = 5,490.70/x
  3. Step 3: Cross multiply
    13,389.64x = 20,084.48 × 5,490.70
  4. Step 4: Simplify right side
    13,389.64x = 110,277,854.34
  5. Step 5: Solve for x
    x = 110,277,854.34/13,389.64
  6. Step 6: Final answer
    x = 8,236.06

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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.