Home / 15,787.48-21,777.27-11,533.34

Finding the Fourth Proportional to 15,787.48, 21,777.27 and 11,533.34

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Solution

The fourth proportional to 15,787.48, 21,777.27 and 11,533.34 is: 15,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.48 : 21,777.27 = 11,533.34 : x
  2. Step 2: Convert to fraction form
    15,787.48/21,777.27 = 11,533.34/x
  3. Step 3: Cross multiply
    15,787.48x = 21,777.27 × 11,533.34
  4. Step 4: Simplify right side
    15,787.48x = 251,164,670.37
  5. Step 5: Solve for x
    x = 251,164,670.37/15,787.48
  6. Step 6: Final answer
    x = 15,909.11

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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.