Home / 16,610.61-22,900.63-13,420.34

Finding the Fourth Proportional to 16,610.61, 22,900.63 and 13,420.34

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Solution

The fourth proportional to 16,610.61, 22,900.63 and 13,420.34 is: 18,502.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,610.61 : 22,900.63 = 13,420.34 : x
  2. Step 2: Convert to fraction form
    16,610.61/22,900.63 = 13,420.34/x
  3. Step 3: Cross multiply
    16,610.61x = 22,900.63 × 13,420.34
  4. Step 4: Simplify right side
    16,610.61x = 307,334,240.81
  5. Step 5: Solve for x
    x = 307,334,240.81/16,610.61
  6. Step 6: Final answer
    x = 18,502.29

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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.