Home / 15,775.02-21,768.81-8,604.76

Finding the Fourth Proportional to 15,775.02, 21,768.81 and 8,604.76

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Solution

The fourth proportional to 15,775.02, 21,768.81 and 8,604.76 is: 11,874.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.02 : 21,768.81 = 8,604.76 : x
  2. Step 2: Convert to fraction form
    15,775.02/21,768.81 = 8,604.76/x
  3. Step 3: Cross multiply
    15,775.02x = 21,768.81 × 8,604.76
  4. Step 4: Simplify right side
    15,775.02x = 187,315,385.54
  5. Step 5: Solve for x
    x = 187,315,385.54/15,775.02
  6. Step 6: Final answer
    x = 11,874.18

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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.