Home / 13,276.56-18,320.60-7,611.24

Finding the Fourth Proportional to 13,276.56, 18,320.60 and 7,611.24

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Solution

The fourth proportional to 13,276.56, 18,320.60 and 7,611.24 is: 10,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.56 : 18,320.60 = 7,611.24 : x
  2. Step 2: Convert to fraction form
    13,276.56/18,320.60 = 7,611.24/x
  3. Step 3: Cross multiply
    13,276.56x = 18,320.60 × 7,611.24
  4. Step 4: Simplify right side
    13,276.56x = 139,442,483.54
  5. Step 5: Solve for x
    x = 139,442,483.54/13,276.56
  6. Step 6: Final answer
    x = 10,502.91

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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.