Home / 13,480.08-18,602.59-7,818.19

Finding the Fourth Proportional to 13,480.08, 18,602.59 and 7,818.19

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Solution

The fourth proportional to 13,480.08, 18,602.59 and 7,818.19 is: 10,789.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.08 : 18,602.59 = 7,818.19 : x
  2. Step 2: Convert to fraction form
    13,480.08/18,602.59 = 7,818.19/x
  3. Step 3: Cross multiply
    13,480.08x = 18,602.59 × 7,818.19
  4. Step 4: Simplify right side
    13,480.08x = 145,438,546.38
  5. Step 5: Solve for x
    x = 145,438,546.38/13,480.08
  6. Step 6: Final answer
    x = 10,789.14

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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.