Home / 13,263.47-18,300.27-8,542.07

Finding the Fourth Proportional to 13,263.47, 18,300.27 and 8,542.07

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Solution

The fourth proportional to 13,263.47, 18,300.27 and 8,542.07 is: 11,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.47 : 18,300.27 = 8,542.07 : x
  2. Step 2: Convert to fraction form
    13,263.47/18,300.27 = 8,542.07/x
  3. Step 3: Cross multiply
    13,263.47x = 18,300.27 × 8,542.07
  4. Step 4: Simplify right side
    13,263.47x = 156,322,053.15
  5. Step 5: Solve for x
    x = 156,322,053.15/13,263.47
  6. Step 6: Final answer
    x = 11,785.91

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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.