Home / 15,829.10-21,831.98-11,047.51

Finding the Fourth Proportional to 15,829.10, 21,831.98 and 11,047.51

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Solution

The fourth proportional to 15,829.10, 21,831.98 and 11,047.51 is: 15,237.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.10 : 21,831.98 = 11,047.51 : x
  2. Step 2: Convert to fraction form
    15,829.10/21,831.98 = 11,047.51/x
  3. Step 3: Cross multiply
    15,829.10x = 21,831.98 × 11,047.51
  4. Step 4: Simplify right side
    15,829.10x = 241,189,078.84
  5. Step 5: Solve for x
    x = 241,189,078.84/15,829.10
  6. Step 6: Final answer
    x = 15,237.07

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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.