Home / 15,774.02-21,767.43-8,603.76

Finding the Fourth Proportional to 15,774.02, 21,767.43 and 8,603.76

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Solution

The fourth proportional to 15,774.02, 21,767.43 and 8,603.76 is: 11,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.02 : 21,767.43 = 8,603.76 : x
  2. Step 2: Convert to fraction form
    15,774.02/21,767.43 = 8,603.76/x
  3. Step 3: Cross multiply
    15,774.02x = 21,767.43 × 8,603.76
  4. Step 4: Simplify right side
    15,774.02x = 187,281,857.43
  5. Step 5: Solve for x
    x = 187,281,857.43/15,774.02
  6. Step 6: Final answer
    x = 11,872.81

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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.