Home / 15,587.33-21,505.17-8,871.27

Finding the Fourth Proportional to 15,587.33, 21,505.17 and 8,871.27

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Solution

The fourth proportional to 15,587.33, 21,505.17 and 8,871.27 is: 12,239.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.33 : 21,505.17 = 8,871.27 : x
  2. Step 2: Convert to fraction form
    15,587.33/21,505.17 = 8,871.27/x
  3. Step 3: Cross multiply
    15,587.33x = 21,505.17 × 8,871.27
  4. Step 4: Simplify right side
    15,587.33x = 190,778,243.06
  5. Step 5: Solve for x
    x = 190,778,243.06/15,587.33
  6. Step 6: Final answer
    x = 12,239.32

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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.