Home / 13,259.28-18,297.26-7,290.40

Finding the Fourth Proportional to 13,259.28, 18,297.26 and 7,290.40

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Solution

The fourth proportional to 13,259.28, 18,297.26 and 7,290.40 is: 10,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.28 : 18,297.26 = 7,290.40 : x
  2. Step 2: Convert to fraction form
    13,259.28/18,297.26 = 7,290.40/x
  3. Step 3: Cross multiply
    13,259.28x = 18,297.26 × 7,290.40
  4. Step 4: Simplify right side
    13,259.28x = 133,394,344.30
  5. Step 5: Solve for x
    x = 133,394,344.30/13,259.28
  6. Step 6: Final answer
    x = 10,060.45

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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.