Home / 9,615.89-13,269.93-5,424.14

Finding the Fourth Proportional to 9,615.89, 13,269.93 and 5,424.14

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Solution

The fourth proportional to 9,615.89, 13,269.93 and 5,424.14 is: 7,485.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,615.89 : 13,269.93 = 5,424.14 : x
  2. Step 2: Convert to fraction form
    9,615.89/13,269.93 = 5,424.14/x
  3. Step 3: Cross multiply
    9,615.89x = 13,269.93 × 5,424.14
  4. Step 4: Simplify right side
    9,615.89x = 71,977,958.11
  5. Step 5: Solve for x
    x = 71,977,958.11/9,615.89
  6. Step 6: Final answer
    x = 7,485.31

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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.