Home / 13,376.03-18,416.90-11,355.25

Finding the Fourth Proportional to 13,376.03, 18,416.90 and 11,355.25

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Solution

The fourth proportional to 13,376.03, 18,416.90 and 11,355.25 is: 15,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376.03 : 18,416.90 = 11,355.25 : x
  2. Step 2: Convert to fraction form
    13,376.03/18,416.90 = 11,355.25/x
  3. Step 3: Cross multiply
    13,376.03x = 18,416.90 × 11,355.25
  4. Step 4: Simplify right side
    13,376.03x = 209,128,543.91
  5. Step 5: Solve for x
    x = 209,128,543.91/13,376.03
  6. Step 6: Final answer
    x = 15,634.58

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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.