Home / 8,685.45-13,025.80-2,445.07

Finding the Fourth Proportional to 8,685.45, 13,025.80 and 2,445.07

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Solution

The fourth proportional to 8,685.45, 13,025.80 and 2,445.07 is: 3,666.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.45 : 13,025.80 = 2,445.07 : x
  2. Step 2: Convert to fraction form
    8,685.45/13,025.80 = 2,445.07/x
  3. Step 3: Cross multiply
    8,685.45x = 13,025.80 × 2,445.07
  4. Step 4: Simplify right side
    8,685.45x = 31,848,992.81
  5. Step 5: Solve for x
    x = 31,848,992.81/8,685.45
  6. Step 6: Final answer
    x = 3,666.94

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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.