Home / 13,013.28-19,513.44-4,247.12

Finding the Fourth Proportional to 13,013.28, 19,513.44 and 4,247.12

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Solution

The fourth proportional to 13,013.28, 19,513.44 and 4,247.12 is: 6,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.28 : 19,513.44 = 4,247.12 : x
  2. Step 2: Convert to fraction form
    13,013.28/19,513.44 = 4,247.12/x
  3. Step 3: Cross multiply
    13,013.28x = 19,513.44 × 4,247.12
  4. Step 4: Simplify right side
    13,013.28x = 82,875,921.29
  5. Step 5: Solve for x
    x = 82,875,921.29/13,013.28
  6. Step 6: Final answer
    x = 6,368.57

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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.