Home / 13,102.57-18,081.75-7,437.16

Finding the Fourth Proportional to 13,102.57, 18,081.75 and 7,437.16

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Solution

The fourth proportional to 13,102.57, 18,081.75 and 7,437.16 is: 10,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.57 : 18,081.75 = 7,437.16 : x
  2. Step 2: Convert to fraction form
    13,102.57/18,081.75 = 7,437.16/x
  3. Step 3: Cross multiply
    13,102.57x = 18,081.75 × 7,437.16
  4. Step 4: Simplify right side
    13,102.57x = 134,476,867.83
  5. Step 5: Solve for x
    x = 134,476,867.83/13,102.57
  6. Step 6: Final answer
    x = 10,263.40

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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.