Home / 15,325.41-21,151.02-9,355.80

Finding the Fourth Proportional to 15,325.41, 21,151.02 and 9,355.80

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Solution

The fourth proportional to 15,325.41, 21,151.02 and 9,355.80 is: 12,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.41 : 21,151.02 = 9,355.80 : x
  2. Step 2: Convert to fraction form
    15,325.41/21,151.02 = 9,355.80/x
  3. Step 3: Cross multiply
    15,325.41x = 21,151.02 × 9,355.80
  4. Step 4: Simplify right side
    15,325.41x = 197,884,712.92
  5. Step 5: Solve for x
    x = 197,884,712.92/15,325.41
  6. Step 6: Final answer
    x = 12,912.20

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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.