Home / 10,490.42-15,727.26-4,940.84

Finding the Fourth Proportional to 10,490.42, 15,727.26 and 4,940.84

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Solution

The fourth proportional to 10,490.42, 15,727.26 and 4,940.84 is: 7,407.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.42 : 15,727.26 = 4,940.84 : x
  2. Step 2: Convert to fraction form
    10,490.42/15,727.26 = 4,940.84/x
  3. Step 3: Cross multiply
    10,490.42x = 15,727.26 × 4,940.84
  4. Step 4: Simplify right side
    10,490.42x = 77,705,875.30
  5. Step 5: Solve for x
    x = 77,705,875.30/10,490.42
  6. Step 6: Final answer
    x = 7,407.32

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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.