Home / 15,683.23-21,643.23-8,609.77

Finding the Fourth Proportional to 15,683.23, 21,643.23 and 8,609.77

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Solution

The fourth proportional to 15,683.23, 21,643.23 and 8,609.77 is: 11,881.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.23 : 21,643.23 = 8,609.77 : x
  2. Step 2: Convert to fraction form
    15,683.23/21,643.23 = 8,609.77/x
  3. Step 3: Cross multiply
    15,683.23x = 21,643.23 × 8,609.77
  4. Step 4: Simplify right side
    15,683.23x = 186,343,232.36
  5. Step 5: Solve for x
    x = 186,343,232.36/15,683.23
  6. Step 6: Final answer
    x = 11,881.69

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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.