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Finding the Fourth Proportional to 8,903.12, 13,364.97 and 5,207.99

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Solution

The fourth proportional to 8,903.12, 13,364.97 and 5,207.99 is: 7,818.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.12 : 13,364.97 = 5,207.99 : x
  2. Step 2: Convert to fraction form
    8,903.12/13,364.97 = 5,207.99/x
  3. Step 3: Cross multiply
    8,903.12x = 13,364.97 × 5,207.99
  4. Step 4: Simplify right side
    8,903.12x = 69,604,563.29
  5. Step 5: Solve for x
    x = 69,604,563.29/8,903.12
  6. Step 6: Final answer
    x = 7,818.00

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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.