Home / 16,991.40-23,447.51-9,438.23

Finding the Fourth Proportional to 16,991.40, 23,447.51 and 9,438.23

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Solution

The fourth proportional to 16,991.40, 23,447.51 and 9,438.23 is: 13,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.40 : 23,447.51 = 9,438.23 : x
  2. Step 2: Convert to fraction form
    16,991.40/23,447.51 = 9,438.23/x
  3. Step 3: Cross multiply
    16,991.40x = 23,447.51 × 9,438.23
  4. Step 4: Simplify right side
    16,991.40x = 221,302,827.88
  5. Step 5: Solve for x
    x = 221,302,827.88/16,991.40
  6. Step 6: Final answer
    x = 13,024.40

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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.