Home / 13,416.59-18,508.46-9,439.89

Finding the Fourth Proportional to 13,416.59, 18,508.46 and 9,439.89

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Solution

The fourth proportional to 13,416.59, 18,508.46 and 9,439.89 is: 13,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.59 : 18,508.46 = 9,439.89 : x
  2. Step 2: Convert to fraction form
    13,416.59/18,508.46 = 9,439.89/x
  3. Step 3: Cross multiply
    13,416.59x = 18,508.46 × 9,439.89
  4. Step 4: Simplify right side
    13,416.59x = 174,717,779.27
  5. Step 5: Solve for x
    x = 174,717,779.27/13,416.59
  6. Step 6: Final answer
    x = 13,022.52

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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.