Home / 13,116.72-19,675.06-5,719.64

Finding the Fourth Proportional to 13,116.72, 19,675.06 and 5,719.64

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Solution

The fourth proportional to 13,116.72, 19,675.06 and 5,719.64 is: 8,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.72 : 19,675.06 = 5,719.64 : x
  2. Step 2: Convert to fraction form
    13,116.72/19,675.06 = 5,719.64/x
  3. Step 3: Cross multiply
    13,116.72x = 19,675.06 × 5,719.64
  4. Step 4: Simplify right side
    13,116.72x = 112,534,260.18
  5. Step 5: Solve for x
    x = 112,534,260.18/13,116.72
  6. Step 6: Final answer
    x = 8,579.45

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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.