Home / 13,174.74-18,176.04-8,130.20

Finding the Fourth Proportional to 13,174.74, 18,176.04 and 8,130.20

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Solution

The fourth proportional to 13,174.74, 18,176.04 and 8,130.20 is: 11,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.74 : 18,176.04 = 8,130.20 : x
  2. Step 2: Convert to fraction form
    13,174.74/18,176.04 = 8,130.20/x
  3. Step 3: Cross multiply
    13,174.74x = 18,176.04 × 8,130.20
  4. Step 4: Simplify right side
    13,174.74x = 147,774,749.53
  5. Step 5: Solve for x
    x = 147,774,749.53/13,174.74
  6. Step 6: Final answer
    x = 11,216.52

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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.