Home / 13,579.24-18,631.77-13,346.28

Finding the Fourth Proportional to 13,579.24, 18,631.77 and 13,346.28

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Solution

The fourth proportional to 13,579.24, 18,631.77 and 13,346.28 is: 18,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.24 : 18,631.77 = 13,346.28 : x
  2. Step 2: Convert to fraction form
    13,579.24/18,631.77 = 13,346.28/x
  3. Step 3: Cross multiply
    13,579.24x = 18,631.77 × 13,346.28
  4. Step 4: Simplify right side
    13,579.24x = 248,664,819.32
  5. Step 5: Solve for x
    x = 248,664,819.32/13,579.24
  6. Step 6: Final answer
    x = 18,312.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.