Home / 8,457.28-12,686.01-3,777.53

Finding the Fourth Proportional to 8,457.28, 12,686.01 and 3,777.53

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Solution

The fourth proportional to 8,457.28, 12,686.01 and 3,777.53 is: 5,666.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.28 : 12,686.01 = 3,777.53 : x
  2. Step 2: Convert to fraction form
    8,457.28/12,686.01 = 3,777.53/x
  3. Step 3: Cross multiply
    8,457.28x = 12,686.01 × 3,777.53
  4. Step 4: Simplify right side
    8,457.28x = 47,921,783.36
  5. Step 5: Solve for x
    x = 47,921,783.36/8,457.28
  6. Step 6: Final answer
    x = 5,666.34

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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.