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Finding the Fourth Proportional to 10,814.65, 14,918.51 and 8,800.35

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Solution

The fourth proportional to 10,814.65, 14,918.51 and 8,800.35 is: 12,139.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,814.65 : 14,918.51 = 8,800.35 : x
  2. Step 2: Convert to fraction form
    10,814.65/14,918.51 = 8,800.35/x
  3. Step 3: Cross multiply
    10,814.65x = 14,918.51 × 8,800.35
  4. Step 4: Simplify right side
    10,814.65x = 131,288,075.53
  5. Step 5: Solve for x
    x = 131,288,075.53/10,814.65
  6. Step 6: Final answer
    x = 12,139.84

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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.