Home / 13,259.78-18,298.22-7,291.46

Finding the Fourth Proportional to 13,259.78, 18,298.22 and 7,291.46

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Solution

The fourth proportional to 13,259.78, 18,298.22 and 7,291.46 is: 10,062.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.78 : 18,298.22 = 7,291.46 : x
  2. Step 2: Convert to fraction form
    13,259.78/18,298.22 = 7,291.46/x
  3. Step 3: Cross multiply
    13,259.78x = 18,298.22 × 7,291.46
  4. Step 4: Simplify right side
    13,259.78x = 133,420,739.20
  5. Step 5: Solve for x
    x = 133,420,739.20/13,259.78
  6. Step 6: Final answer
    x = 10,062.06

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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.