Home / 13,078.46-18,047.54-7,110.10

Finding the Fourth Proportional to 13,078.46, 18,047.54 and 7,110.10

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Solution

The fourth proportional to 13,078.46, 18,047.54 and 7,110.10 is: 9,811.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.46 : 18,047.54 = 7,110.10 : x
  2. Step 2: Convert to fraction form
    13,078.46/18,047.54 = 7,110.10/x
  3. Step 3: Cross multiply
    13,078.46x = 18,047.54 × 7,110.10
  4. Step 4: Simplify right side
    13,078.46x = 128,319,814.15
  5. Step 5: Solve for x
    x = 128,319,814.15/13,078.46
  6. Step 6: Final answer
    x = 9,811.54

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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.