Home / 13,531.04-18,660.74-8,495.74

Finding the Fourth Proportional to 13,531.04, 18,660.74 and 8,495.74

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Solution

The fourth proportional to 13,531.04, 18,660.74 and 8,495.74 is: 11,716.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.04 : 18,660.74 = 8,495.74 : x
  2. Step 2: Convert to fraction form
    13,531.04/18,660.74 = 8,495.74/x
  3. Step 3: Cross multiply
    13,531.04x = 18,660.74 × 8,495.74
  4. Step 4: Simplify right side
    13,531.04x = 158,536,795.25
  5. Step 5: Solve for x
    x = 158,536,795.25/13,531.04
  6. Step 6: Final answer
    x = 11,716.53

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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.