Home / 13,893.28-19,172.56-7,605.60

Finding the Fourth Proportional to 13,893.28, 19,172.56 and 7,605.60

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Solution

The fourth proportional to 13,893.28, 19,172.56 and 7,605.60 is: 10,495.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.28 : 19,172.56 = 7,605.60 : x
  2. Step 2: Convert to fraction form
    13,893.28/19,172.56 = 7,605.60/x
  3. Step 3: Cross multiply
    13,893.28x = 19,172.56 × 7,605.60
  4. Step 4: Simplify right side
    13,893.28x = 145,818,822.34
  5. Step 5: Solve for x
    x = 145,818,822.34/13,893.28
  6. Step 6: Final answer
    x = 10,495.64

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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.