Home / 7,812.02-11,706.29-3,127.39

Finding the Fourth Proportional to 7,812.02, 11,706.29 and 3,127.39

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Solution

The fourth proportional to 7,812.02, 11,706.29 and 3,127.39 is: 4,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.02 : 11,706.29 = 3,127.39 : x
  2. Step 2: Convert to fraction form
    7,812.02/11,706.29 = 3,127.39/x
  3. Step 3: Cross multiply
    7,812.02x = 11,706.29 × 3,127.39
  4. Step 4: Simplify right side
    7,812.02x = 36,610,101.11
  5. Step 5: Solve for x
    x = 36,610,101.11/7,812.02
  6. Step 6: Final answer
    x = 4,686.38

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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.