Home / 8,966.02-12,371.07-5,428.48

Finding the Fourth Proportional to 8,966.02, 12,371.07 and 5,428.48

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Solution

The fourth proportional to 8,966.02, 12,371.07 and 5,428.48 is: 7,490.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.02 : 12,371.07 = 5,428.48 : x
  2. Step 2: Convert to fraction form
    8,966.02/12,371.07 = 5,428.48/x
  3. Step 3: Cross multiply
    8,966.02x = 12,371.07 × 5,428.48
  4. Step 4: Simplify right side
    8,966.02x = 67,156,106.07
  5. Step 5: Solve for x
    x = 67,156,106.07/8,966.02
  6. Step 6: Final answer
    x = 7,490.07

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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.