Home / 16,991.48-23,448.40-9,916.52

Finding the Fourth Proportional to 16,991.48, 23,448.40 and 9,916.52

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Solution

The fourth proportional to 16,991.48, 23,448.40 and 9,916.52 is: 13,684.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.48 : 23,448.40 = 9,916.52 : x
  2. Step 2: Convert to fraction form
    16,991.48/23,448.40 = 9,916.52/x
  3. Step 3: Cross multiply
    16,991.48x = 23,448.40 × 9,916.52
  4. Step 4: Simplify right side
    16,991.48x = 232,526,527.57
  5. Step 5: Solve for x
    x = 232,526,527.57/16,991.48
  6. Step 6: Final answer
    x = 13,684.89

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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.