Home / 13,465.36-20,193.68-4,915.60

Finding the Fourth Proportional to 13,465.36, 20,193.68 and 4,915.60

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Solution

The fourth proportional to 13,465.36, 20,193.68 and 4,915.60 is: 7,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.36 : 20,193.68 = 4,915.60 : x
  2. Step 2: Convert to fraction form
    13,465.36/20,193.68 = 4,915.60/x
  3. Step 3: Cross multiply
    13,465.36x = 20,193.68 × 4,915.60
  4. Step 4: Simplify right side
    13,465.36x = 99,264,053.41
  5. Step 5: Solve for x
    x = 99,264,053.41/13,465.36
  6. Step 6: Final answer
    x = 7,371.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.