Home / 13,575.13-20,356.26-5,259.04

Finding the Fourth Proportional to 13,575.13, 20,356.26 and 5,259.04

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Solution

The fourth proportional to 13,575.13, 20,356.26 and 5,259.04 is: 7,886.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.13 : 20,356.26 = 5,259.04 : x
  2. Step 2: Convert to fraction form
    13,575.13/20,356.26 = 5,259.04/x
  3. Step 3: Cross multiply
    13,575.13x = 20,356.26 × 5,259.04
  4. Step 4: Simplify right side
    13,575.13x = 107,054,385.59
  5. Step 5: Solve for x
    x = 107,054,385.59/13,575.13
  6. Step 6: Final answer
    x = 7,886.07

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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.