Home / 15,570.79-21,488.21-8,497.60

Finding the Fourth Proportional to 15,570.79, 21,488.21 and 8,497.60

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Solution

The fourth proportional to 15,570.79, 21,488.21 and 8,497.60 is: 11,726.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.79 : 21,488.21 = 8,497.60 : x
  2. Step 2: Convert to fraction form
    15,570.79/21,488.21 = 8,497.60/x
  3. Step 3: Cross multiply
    15,570.79x = 21,488.21 × 8,497.60
  4. Step 4: Simplify right side
    15,570.79x = 182,598,213.30
  5. Step 5: Solve for x
    x = 182,598,213.30/15,570.79
  6. Step 6: Final answer
    x = 11,726.97

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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.