Home / 15,616.60-23,399.30-13,005.40

Finding the Fourth Proportional to 15,616.60, 23,399.30 and 13,005.40

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Solution

The fourth proportional to 15,616.60, 23,399.30 and 13,005.40 is: 19,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.60 : 23,399.30 = 13,005.40 : x
  2. Step 2: Convert to fraction form
    15,616.60/23,399.30 = 13,005.40/x
  3. Step 3: Cross multiply
    15,616.60x = 23,399.30 × 13,005.40
  4. Step 4: Simplify right side
    15,616.60x = 304,317,256.22
  5. Step 5: Solve for x
    x = 304,317,256.22/15,616.60
  6. Step 6: Final answer
    x = 19,486.78

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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.