Home / 13,430.01-18,530.60-8,125.23

Finding the Fourth Proportional to 13,430.01, 18,530.60 and 8,125.23

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Solution

The fourth proportional to 13,430.01, 18,530.60 and 8,125.23 is: 11,211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.01 : 18,530.60 = 8,125.23 : x
  2. Step 2: Convert to fraction form
    13,430.01/18,530.60 = 8,125.23/x
  3. Step 3: Cross multiply
    13,430.01x = 18,530.60 × 8,125.23
  4. Step 4: Simplify right side
    13,430.01x = 150,565,346.41
  5. Step 5: Solve for x
    x = 150,565,346.41/13,430.01
  6. Step 6: Final answer
    x = 11,211.11

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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.