Home / 13,259.35-18,297.90-7,291.42

Finding the Fourth Proportional to 13,259.35, 18,297.90 and 7,291.42

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Solution

The fourth proportional to 13,259.35, 18,297.90 and 7,291.42 is: 10,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.35 : 18,297.90 = 7,291.42 : x
  2. Step 2: Convert to fraction form
    13,259.35/18,297.90 = 7,291.42/x
  3. Step 3: Cross multiply
    13,259.35x = 18,297.90 × 7,291.42
  4. Step 4: Simplify right side
    13,259.35x = 133,417,628.27
  5. Step 5: Solve for x
    x = 133,417,628.27/13,259.35
  6. Step 6: Final answer
    x = 10,062.16

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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.