Home / 12,435.23-18,633.30-8,683.31

Finding the Fourth Proportional to 12,435.23, 18,633.30 and 8,683.31

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Solution

The fourth proportional to 12,435.23, 18,633.30 and 8,683.31 is: 13,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.23 : 18,633.30 = 8,683.31 : x
  2. Step 2: Convert to fraction form
    12,435.23/18,633.30 = 8,683.31/x
  3. Step 3: Cross multiply
    12,435.23x = 18,633.30 × 8,683.31
  4. Step 4: Simplify right side
    12,435.23x = 161,798,720.22
  5. Step 5: Solve for x
    x = 161,798,720.22/12,435.23
  6. Step 6: Final answer
    x = 13,011.32

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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.