Home / 13,012.39-19,521.70-4,247.32

Finding the Fourth Proportional to 13,012.39, 19,521.70 and 4,247.32

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Solution

The fourth proportional to 13,012.39, 19,521.70 and 4,247.32 is: 6,372.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.39 : 19,521.70 = 4,247.32 : x
  2. Step 2: Convert to fraction form
    13,012.39/19,521.70 = 4,247.32/x
  3. Step 3: Cross multiply
    13,012.39x = 19,521.70 × 4,247.32
  4. Step 4: Simplify right side
    13,012.39x = 82,914,885.61
  5. Step 5: Solve for x
    x = 82,914,885.61/13,012.39
  6. Step 6: Final answer
    x = 6,372.00

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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.