Home / 13,030.24-17,982-7,441.60

Finding the Fourth Proportional to 13,030.24, 17,982 and 7,441.60

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Solution

The fourth proportional to 13,030.24, 17,982 and 7,441.60 is: 10,269.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.24 : 17,982 = 7,441.60 : x
  2. Step 2: Convert to fraction form
    13,030.24/17,982 = 7,441.60/x
  3. Step 3: Cross multiply
    13,030.24x = 17,982 × 7,441.60
  4. Step 4: Simplify right side
    13,030.24x = 133,814,851.20
  5. Step 5: Solve for x
    x = 133,814,851.20/13,030.24
  6. Step 6: Final answer
    x = 10,269.56

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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.