Home / 15,026.96-20,735.40-8,655.63

Finding the Fourth Proportional to 15,026.96, 20,735.40 and 8,655.63

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Solution

The fourth proportional to 15,026.96, 20,735.40 and 8,655.63 is: 11,943.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.96 : 20,735.40 = 8,655.63 : x
  2. Step 2: Convert to fraction form
    15,026.96/20,735.40 = 8,655.63/x
  3. Step 3: Cross multiply
    15,026.96x = 20,735.40 × 8,655.63
  4. Step 4: Simplify right side
    15,026.96x = 179,477,880.66
  5. Step 5: Solve for x
    x = 179,477,880.66/15,026.96
  6. Step 6: Final answer
    x = 11,943.72

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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.