Home / 12,859.89-19,269.99-8,683.53

Finding the Fourth Proportional to 12,859.89, 19,269.99 and 8,683.53

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Solution

The fourth proportional to 12,859.89, 19,269.99 and 8,683.53 is: 13,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.89 : 19,269.99 = 8,683.53 : x
  2. Step 2: Convert to fraction form
    12,859.89/19,269.99 = 8,683.53/x
  3. Step 3: Cross multiply
    12,859.89x = 19,269.99 × 8,683.53
  4. Step 4: Simplify right side
    12,859.89x = 167,331,536.26
  5. Step 5: Solve for x
    x = 167,331,536.26/12,859.89
  6. Step 6: Final answer
    x = 13,011.89

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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.