Home / 13,055.74-18,009.38-8,334.70

Finding the Fourth Proportional to 13,055.74, 18,009.38 and 8,334.70

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Solution

The fourth proportional to 13,055.74, 18,009.38 and 8,334.70 is: 11,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.74 : 18,009.38 = 8,334.70 : x
  2. Step 2: Convert to fraction form
    13,055.74/18,009.38 = 8,334.70/x
  3. Step 3: Cross multiply
    13,055.74x = 18,009.38 × 8,334.70
  4. Step 4: Simplify right side
    13,055.74x = 150,102,779.49
  5. Step 5: Solve for x
    x = 150,102,779.49/13,055.74
  6. Step 6: Final answer
    x = 11,497.07

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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.