Home / 11,655.43-16,090.45-7,898.45

Finding the Fourth Proportional to 11,655.43, 16,090.45 and 7,898.45

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Solution

The fourth proportional to 11,655.43, 16,090.45 and 7,898.45 is: 10,903.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,655.43 : 16,090.45 = 7,898.45 : x
  2. Step 2: Convert to fraction form
    11,655.43/16,090.45 = 7,898.45/x
  3. Step 3: Cross multiply
    11,655.43x = 16,090.45 × 7,898.45
  4. Step 4: Simplify right side
    11,655.43x = 127,089,614.80
  5. Step 5: Solve for x
    x = 127,089,614.80/11,655.43
  6. Step 6: Final answer
    x = 10,903.90

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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.