Home / 13,619.59-20,430.16-4,854.51

Finding the Fourth Proportional to 13,619.59, 20,430.16 and 4,854.51

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Solution

The fourth proportional to 13,619.59, 20,430.16 and 4,854.51 is: 7,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.59 : 20,430.16 = 4,854.51 : x
  2. Step 2: Convert to fraction form
    13,619.59/20,430.16 = 4,854.51/x
  3. Step 3: Cross multiply
    13,619.59x = 20,430.16 × 4,854.51
  4. Step 4: Simplify right side
    13,619.59x = 99,178,416.02
  5. Step 5: Solve for x
    x = 99,178,416.02/13,619.59
  6. Step 6: Final answer
    x = 7,282.04

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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.