Home / 13,749.86-18,974.94-7,462.28

Finding the Fourth Proportional to 13,749.86, 18,974.94 and 7,462.28

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Solution

The fourth proportional to 13,749.86, 18,974.94 and 7,462.28 is: 10,298.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.86 : 18,974.94 = 7,462.28 : x
  2. Step 2: Convert to fraction form
    13,749.86/18,974.94 = 7,462.28/x
  3. Step 3: Cross multiply
    13,749.86x = 18,974.94 × 7,462.28
  4. Step 4: Simplify right side
    13,749.86x = 141,596,315.26
  5. Step 5: Solve for x
    x = 141,596,315.26/13,749.86
  6. Step 6: Final answer
    x = 10,298.02

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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.