Home / 15,449.90-23,185.65-9,916.70

Finding the Fourth Proportional to 15,449.90, 23,185.65 and 9,916.70

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Solution

The fourth proportional to 15,449.90, 23,185.65 and 9,916.70 is: 14,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,449.90 : 23,185.65 = 9,916.70 : x
  2. Step 2: Convert to fraction form
    15,449.90/23,185.65 = 9,916.70/x
  3. Step 3: Cross multiply
    15,449.90x = 23,185.65 × 9,916.70
  4. Step 4: Simplify right side
    15,449.90x = 229,925,135.36
  5. Step 5: Solve for x
    x = 229,925,135.36/15,449.90
  6. Step 6: Final answer
    x = 14,881.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.