Home / 16,858.19-23,265.36-9,690.40

Finding the Fourth Proportional to 16,858.19, 23,265.36 and 9,690.40

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Solution

The fourth proportional to 16,858.19, 23,265.36 and 9,690.40 is: 13,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,858.19 : 23,265.36 = 9,690.40 : x
  2. Step 2: Convert to fraction form
    16,858.19/23,265.36 = 9,690.40/x
  3. Step 3: Cross multiply
    16,858.19x = 23,265.36 × 9,690.40
  4. Step 4: Simplify right side
    16,858.19x = 225,450,673.63
  5. Step 5: Solve for x
    x = 225,450,673.63/16,858.19
  6. Step 6: Final answer
    x = 13,373.36

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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.