Home / 15,742.50-21,726.54-9,029.22

Finding the Fourth Proportional to 15,742.50, 21,726.54 and 9,029.22

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Solution

The fourth proportional to 15,742.50, 21,726.54 and 9,029.22 is: 12,461.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742.50 : 21,726.54 = 9,029.22 : x
  2. Step 2: Convert to fraction form
    15,742.50/21,726.54 = 9,029.22/x
  3. Step 3: Cross multiply
    15,742.50x = 21,726.54 × 9,029.22
  4. Step 4: Simplify right side
    15,742.50x = 196,173,709.50
  5. Step 5: Solve for x
    x = 196,173,709.50/15,742.50
  6. Step 6: Final answer
    x = 12,461.41

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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.