Home / 13,659.09-20,488.70-4,298.73

Finding the Fourth Proportional to 13,659.09, 20,488.70 and 4,298.73

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Solution

The fourth proportional to 13,659.09, 20,488.70 and 4,298.73 is: 6,448.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.09 : 20,488.70 = 4,298.73 : x
  2. Step 2: Convert to fraction form
    13,659.09/20,488.70 = 4,298.73/x
  3. Step 3: Cross multiply
    13,659.09x = 20,488.70 × 4,298.73
  4. Step 4: Simplify right side
    13,659.09x = 88,075,389.35
  5. Step 5: Solve for x
    x = 88,075,389.35/13,659.09
  6. Step 6: Final answer
    x = 6,448.12

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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.