Home / 15,774.30-21,768.57-8,700.66

Finding the Fourth Proportional to 15,774.30, 21,768.57 and 8,700.66

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Solution

The fourth proportional to 15,774.30, 21,768.57 and 8,700.66 is: 12,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.30 : 21,768.57 = 8,700.66 : x
  2. Step 2: Convert to fraction form
    15,774.30/21,768.57 = 8,700.66/x
  3. Step 3: Cross multiply
    15,774.30x = 21,768.57 × 8,700.66
  4. Step 4: Simplify right side
    15,774.30x = 189,400,926.26
  5. Step 5: Solve for x
    x = 189,400,926.26/15,774.30
  6. Step 6: Final answer
    x = 12,006.93

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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.