Home / 9,172.02-13,756.88-2,931.51

Finding the Fourth Proportional to 9,172.02, 13,756.88 and 2,931.51

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Solution

The fourth proportional to 9,172.02, 13,756.88 and 2,931.51 is: 4,396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.02 : 13,756.88 = 2,931.51 : x
  2. Step 2: Convert to fraction form
    9,172.02/13,756.88 = 2,931.51/x
  3. Step 3: Cross multiply
    9,172.02x = 13,756.88 × 2,931.51
  4. Step 4: Simplify right side
    9,172.02x = 40,328,473.72
  5. Step 5: Solve for x
    x = 40,328,473.72/9,172.02
  6. Step 6: Final answer
    x = 4,396.90

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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.