Home / 13,365.29-18,430.58-8,056.95

Finding the Fourth Proportional to 13,365.29, 18,430.58 and 8,056.95

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Solution

The fourth proportional to 13,365.29, 18,430.58 and 8,056.95 is: 11,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.29 : 18,430.58 = 8,056.95 : x
  2. Step 2: Convert to fraction form
    13,365.29/18,430.58 = 8,056.95/x
  3. Step 3: Cross multiply
    13,365.29x = 18,430.58 × 8,056.95
  4. Step 4: Simplify right side
    13,365.29x = 148,494,221.25
  5. Step 5: Solve for x
    x = 148,494,221.25/13,365.29
  6. Step 6: Final answer
    x = 11,110.44

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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.