Home / 15,644.03-21,589.31-8,570.45

Finding the Fourth Proportional to 15,644.03, 21,589.31 and 8,570.45

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Solution

The fourth proportional to 15,644.03, 21,589.31 and 8,570.45 is: 11,827.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644.03 : 21,589.31 = 8,570.45 : x
  2. Step 2: Convert to fraction form
    15,644.03/21,589.31 = 8,570.45/x
  3. Step 3: Cross multiply
    15,644.03x = 21,589.31 × 8,570.45
  4. Step 4: Simplify right side
    15,644.03x = 185,030,113.01
  5. Step 5: Solve for x
    x = 185,030,113.01/15,644.03
  6. Step 6: Final answer
    x = 11,827.53

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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.