Home / 10,121.40-15,172.02-4,846.68

Finding the Fourth Proportional to 10,121.40, 15,172.02 and 4,846.68

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Solution

The fourth proportional to 10,121.40, 15,172.02 and 4,846.68 is: 7,265.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.40 : 15,172.02 = 4,846.68 : x
  2. Step 2: Convert to fraction form
    10,121.40/15,172.02 = 4,846.68/x
  3. Step 3: Cross multiply
    10,121.40x = 15,172.02 × 4,846.68
  4. Step 4: Simplify right side
    10,121.40x = 73,533,925.89
  5. Step 5: Solve for x
    x = 73,533,925.89/10,121.40
  6. Step 6: Final answer
    x = 7,265.19

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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.