Home / 15,310.90-21,127.47-8,597.27

Finding the Fourth Proportional to 15,310.90, 21,127.47 and 8,597.27

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Solution

The fourth proportional to 15,310.90, 21,127.47 and 8,597.27 is: 11,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.90 : 21,127.47 = 8,597.27 : x
  2. Step 2: Convert to fraction form
    15,310.90/21,127.47 = 8,597.27/x
  3. Step 3: Cross multiply
    15,310.90x = 21,127.47 × 8,597.27
  4. Step 4: Simplify right side
    15,310.90x = 181,638,564.01
  5. Step 5: Solve for x
    x = 181,638,564.01/15,310.90
  6. Step 6: Final answer
    x = 11,863.35

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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.