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Finding the Fourth Proportional to 10,803.90, 14,916.27 and 8,819.18

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Solution

The fourth proportional to 10,803.90, 14,916.27 and 8,819.18 is: 12,176.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.90 : 14,916.27 = 8,819.18 : x
  2. Step 2: Convert to fraction form
    10,803.90/14,916.27 = 8,819.18/x
  3. Step 3: Cross multiply
    10,803.90x = 14,916.27 × 8,819.18
  4. Step 4: Simplify right side
    10,803.90x = 131,549,270.06
  5. Step 5: Solve for x
    x = 131,549,270.06/10,803.90
  6. Step 6: Final answer
    x = 12,176.09

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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.