Home / 13,639.76-18,823.64-9,094.60

Finding the Fourth Proportional to 13,639.76, 18,823.64 and 9,094.60

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Solution

The fourth proportional to 13,639.76, 18,823.64 and 9,094.60 is: 12,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.76 : 18,823.64 = 9,094.60 : x
  2. Step 2: Convert to fraction form
    13,639.76/18,823.64 = 9,094.60/x
  3. Step 3: Cross multiply
    13,639.76x = 18,823.64 × 9,094.60
  4. Step 4: Simplify right side
    13,639.76x = 171,193,476.34
  5. Step 5: Solve for x
    x = 171,193,476.34/13,639.76
  6. Step 6: Final answer
    x = 12,551.06

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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.