Home / 15,842.02-21,861.30-8,768.02

Finding the Fourth Proportional to 15,842.02, 21,861.30 and 8,768.02

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Solution

The fourth proportional to 15,842.02, 21,861.30 and 8,768.02 is: 12,099.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,842.02 : 21,861.30 = 8,768.02 : x
  2. Step 2: Convert to fraction form
    15,842.02/21,861.30 = 8,768.02/x
  3. Step 3: Cross multiply
    15,842.02x = 21,861.30 × 8,768.02
  4. Step 4: Simplify right side
    15,842.02x = 191,680,315.63
  5. Step 5: Solve for x
    x = 191,680,315.63/15,842.02
  6. Step 6: Final answer
    x = 12,099.49

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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.