Home / 15,837.81-23,724.21-7,916.63

Finding the Fourth Proportional to 15,837.81, 23,724.21 and 7,916.63

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Solution

The fourth proportional to 15,837.81, 23,724.21 and 7,916.63 is: 11,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,837.81 : 23,724.21 = 7,916.63 : x
  2. Step 2: Convert to fraction form
    15,837.81/23,724.21 = 7,916.63/x
  3. Step 3: Cross multiply
    15,837.81x = 23,724.21 × 7,916.63
  4. Step 4: Simplify right side
    15,837.81x = 187,815,673.99
  5. Step 5: Solve for x
    x = 187,815,673.99/15,837.81
  6. Step 6: Final answer
    x = 11,858.69

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1.5x scale

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.