Home / 13,146.57-19,720.06-4,381.49

Finding the Fourth Proportional to 13,146.57, 19,720.06 and 4,381.49

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Solution

The fourth proportional to 13,146.57, 19,720.06 and 4,381.49 is: 6,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.57 : 19,720.06 = 4,381.49 : x
  2. Step 2: Convert to fraction form
    13,146.57/19,720.06 = 4,381.49/x
  3. Step 3: Cross multiply
    13,146.57x = 19,720.06 × 4,381.49
  4. Step 4: Simplify right side
    13,146.57x = 86,403,284.04
  5. Step 5: Solve for x
    x = 86,403,284.04/13,146.57
  6. Step 6: Final answer
    x = 6,572.31

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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.