Home / 13,612.48-18,779.82-8,298.08

Finding the Fourth Proportional to 13,612.48, 18,779.82 and 8,298.08

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Solution

The fourth proportional to 13,612.48, 18,779.82 and 8,298.08 is: 11,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.48 : 18,779.82 = 8,298.08 : x
  2. Step 2: Convert to fraction form
    13,612.48/18,779.82 = 8,298.08/x
  3. Step 3: Cross multiply
    13,612.48x = 18,779.82 × 8,298.08
  4. Step 4: Simplify right side
    13,612.48x = 155,836,448.75
  5. Step 5: Solve for x
    x = 155,836,448.75/13,612.48
  6. Step 6: Final answer
    x = 11,448.06

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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.