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Finding the Fourth Proportional to 9,898.80, 14,850.93 and 8,810.76

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Solution

The fourth proportional to 9,898.80, 14,850.93 and 8,810.76 is: 13,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,898.80 : 14,850.93 = 8,810.76 : x
  2. Step 2: Convert to fraction form
    9,898.80/14,850.93 = 8,810.76/x
  3. Step 3: Cross multiply
    9,898.80x = 14,850.93 × 8,810.76
  4. Step 4: Simplify right side
    9,898.80x = 130,847,980.01
  5. Step 5: Solve for x
    x = 130,847,980.01/9,898.80
  6. Step 6: Final answer
    x = 13,218.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.