Home / 15,887.33-23,812.51-11,688.47

Finding the Fourth Proportional to 15,887.33, 23,812.51 and 11,688.47

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Solution

The fourth proportional to 15,887.33, 23,812.51 and 11,688.47 is: 17,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.33 : 23,812.51 = 11,688.47 : x
  2. Step 2: Convert to fraction form
    15,887.33/23,812.51 = 11,688.47/x
  3. Step 3: Cross multiply
    15,887.33x = 23,812.51 × 11,688.47
  4. Step 4: Simplify right side
    15,887.33x = 278,331,738.81
  5. Step 5: Solve for x
    x = 278,331,738.81/15,887.33
  6. Step 6: Final answer
    x = 17,519.10

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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.