Home / 10,303.86-14,208.62-8,816.70

Finding the Fourth Proportional to 10,303.86, 14,208.62 and 8,816.70

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Solution

The fourth proportional to 10,303.86, 14,208.62 and 8,816.70 is: 12,157.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303.86 : 14,208.62 = 8,816.70 : x
  2. Step 2: Convert to fraction form
    10,303.86/14,208.62 = 8,816.70/x
  3. Step 3: Cross multiply
    10,303.86x = 14,208.62 × 8,816.70
  4. Step 4: Simplify right side
    10,303.86x = 125,273,139.95
  5. Step 5: Solve for x
    x = 125,273,139.95/10,303.86
  6. Step 6: Final answer
    x = 12,157.88

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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.