Home / 13,259.30-18,297.60-7,290.91

Finding the Fourth Proportional to 13,259.30, 18,297.60 and 7,290.91

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Solution

The fourth proportional to 13,259.30, 18,297.60 and 7,290.91 is: 10,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.30 : 18,297.60 = 7,290.91 : x
  2. Step 2: Convert to fraction form
    13,259.30/18,297.60 = 7,290.91/x
  3. Step 3: Cross multiply
    13,259.30x = 18,297.60 × 7,290.91
  4. Step 4: Simplify right side
    13,259.30x = 133,406,150.35
  5. Step 5: Solve for x
    x = 133,406,150.35/13,259.30
  6. Step 6: Final answer
    x = 10,061.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.