Home / 15,570.22-21,487.36-8,497.10

Finding the Fourth Proportional to 15,570.22, 21,487.36 and 8,497.10

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Solution

The fourth proportional to 15,570.22, 21,487.36 and 8,497.10 is: 11,726.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.22 : 21,487.36 = 8,497.10 : x
  2. Step 2: Convert to fraction form
    15,570.22/21,487.36 = 8,497.10/x
  3. Step 3: Cross multiply
    15,570.22x = 21,487.36 × 8,497.10
  4. Step 4: Simplify right side
    15,570.22x = 182,580,171.69
  5. Step 5: Solve for x
    x = 182,580,171.69/15,570.22
  6. Step 6: Final answer
    x = 11,726.24

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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.