Home / 10,803.68-14,909.64-6,612.56

Finding the Fourth Proportional to 10,803.68, 14,909.64 and 6,612.56

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Solution

The fourth proportional to 10,803.68, 14,909.64 and 6,612.56 is: 9,125.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.68 : 14,909.64 = 6,612.56 : x
  2. Step 2: Convert to fraction form
    10,803.68/14,909.64 = 6,612.56/x
  3. Step 3: Cross multiply
    10,803.68x = 14,909.64 × 6,612.56
  4. Step 4: Simplify right side
    10,803.68x = 98,590,889.08
  5. Step 5: Solve for x
    x = 98,590,889.08/10,803.68
  6. Step 6: Final answer
    x = 9,125.68

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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.