Home / 12,259.18-16,918.23-9,429.58

Finding the Fourth Proportional to 12,259.18, 16,918.23 and 9,429.58

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Solution

The fourth proportional to 12,259.18, 16,918.23 and 9,429.58 is: 13,013.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259.18 : 16,918.23 = 9,429.58 : x
  2. Step 2: Convert to fraction form
    12,259.18/16,918.23 = 9,429.58/x
  3. Step 3: Cross multiply
    12,259.18x = 16,918.23 × 9,429.58
  4. Step 4: Simplify right side
    12,259.18x = 159,531,803.24
  5. Step 5: Solve for x
    x = 159,531,803.24/12,259.18
  6. Step 6: Final answer
    x = 13,013.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.