Home / 10,424.67-15,617.40-5,153.55

Finding the Fourth Proportional to 10,424.67, 15,617.40 and 5,153.55

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Solution

The fourth proportional to 10,424.67, 15,617.40 and 5,153.55 is: 7,720.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,424.67 : 15,617.40 = 5,153.55 : x
  2. Step 2: Convert to fraction form
    10,424.67/15,617.40 = 5,153.55/x
  3. Step 3: Cross multiply
    10,424.67x = 15,617.40 × 5,153.55
  4. Step 4: Simplify right side
    10,424.67x = 80,485,051.77
  5. Step 5: Solve for x
    x = 80,485,051.77/10,424.67
  6. Step 6: Final answer
    x = 7,720.63

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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.