Home / 13,188.59-19,785.84-4,423.28

Finding the Fourth Proportional to 13,188.59, 19,785.84 and 4,423.28

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Solution

The fourth proportional to 13,188.59, 19,785.84 and 4,423.28 is: 6,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.59 : 19,785.84 = 4,423.28 : x
  2. Step 2: Convert to fraction form
    13,188.59/19,785.84 = 4,423.28/x
  3. Step 3: Cross multiply
    13,188.59x = 19,785.84 × 4,423.28
  4. Step 4: Simplify right side
    13,188.59x = 87,518,211.43
  5. Step 5: Solve for x
    x = 87,518,211.43/13,188.59
  6. Step 6: Final answer
    x = 6,635.91

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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.