Home / 15,570.89-21,487.74-8,497.29

Finding the Fourth Proportional to 15,570.89, 21,487.74 and 8,497.29

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Solution

The fourth proportional to 15,570.89, 21,487.74 and 8,497.29 is: 11,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.89 : 21,487.74 = 8,497.29 : x
  2. Step 2: Convert to fraction form
    15,570.89/21,487.74 = 8,497.29/x
  3. Step 3: Cross multiply
    15,570.89x = 21,487.74 × 8,497.29
  4. Step 4: Simplify right side
    15,570.89x = 182,587,558.22
  5. Step 5: Solve for x
    x = 182,587,558.22/15,570.89
  6. Step 6: Final answer
    x = 11,726.22

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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.