Home / 19,409.36-29,102.52-7,728.08

Finding the Fourth Proportional to 19,409.36, 29,102.52 and 7,728.08

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Solution

The fourth proportional to 19,409.36, 29,102.52 and 7,728.08 is: 11,587.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,409.36 : 29,102.52 = 7,728.08 : x
  2. Step 2: Convert to fraction form
    19,409.36/29,102.52 = 7,728.08/x
  3. Step 3: Cross multiply
    19,409.36x = 29,102.52 × 7,728.08
  4. Step 4: Simplify right side
    19,409.36x = 224,906,602.76
  5. Step 5: Solve for x
    x = 224,906,602.76/19,409.36
  6. Step 6: Final answer
    x = 11,587.53

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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.