Home / 13,128.24-19,686.60-4,806.10

Finding the Fourth Proportional to 13,128.24, 19,686.60 and 4,806.10

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Solution

The fourth proportional to 13,128.24, 19,686.60 and 4,806.10 is: 7,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.24 : 19,686.60 = 4,806.10 : x
  2. Step 2: Convert to fraction form
    13,128.24/19,686.60 = 4,806.10/x
  3. Step 3: Cross multiply
    13,128.24x = 19,686.60 × 4,806.10
  4. Step 4: Simplify right side
    13,128.24x = 94,615,768.26
  5. Step 5: Solve for x
    x = 94,615,768.26/13,128.24
  6. Step 6: Final answer
    x = 7,207.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.