Home / 18,409.55-25,386.95-11,334.60

Finding the Fourth Proportional to 18,409.55, 25,386.95 and 11,334.60

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Solution

The fourth proportional to 18,409.55, 25,386.95 and 11,334.60 is: 15,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.55 : 25,386.95 = 11,334.60 : x
  2. Step 2: Convert to fraction form
    18,409.55/25,386.95 = 11,334.60/x
  3. Step 3: Cross multiply
    18,409.55x = 25,386.95 × 11,334.60
  4. Step 4: Simplify right side
    18,409.55x = 287,750,951.81
  5. Step 5: Solve for x
    x = 287,750,951.81/18,409.55
  6. Step 6: Final answer
    x = 15,630.53

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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.