Home / 15,683.53-21,643.05-8,609.98

Finding the Fourth Proportional to 15,683.53, 21,643.05 and 8,609.98

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Solution

The fourth proportional to 15,683.53, 21,643.05 and 8,609.98 is: 11,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.53 : 21,643.05 = 8,609.98 : x
  2. Step 2: Convert to fraction form
    15,683.53/21,643.05 = 8,609.98/x
  3. Step 3: Cross multiply
    15,683.53x = 21,643.05 × 8,609.98
  4. Step 4: Simplify right side
    15,683.53x = 186,346,227.64
  5. Step 5: Solve for x
    x = 186,346,227.64/15,683.53
  6. Step 6: Final answer
    x = 11,881.65

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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.