Home / 10,400.68-14,353.05-5,685.07

Finding the Fourth Proportional to 10,400.68, 14,353.05 and 5,685.07

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Solution

The fourth proportional to 10,400.68, 14,353.05 and 5,685.07 is: 7,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.68 : 14,353.05 = 5,685.07 : x
  2. Step 2: Convert to fraction form
    10,400.68/14,353.05 = 5,685.07/x
  3. Step 3: Cross multiply
    10,400.68x = 14,353.05 × 5,685.07
  4. Step 4: Simplify right side
    10,400.68x = 81,598,093.96
  5. Step 5: Solve for x
    x = 81,598,093.96/10,400.68
  6. Step 6: Final answer
    x = 7,845.46

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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.