Home / 13,768.37-19,000.18-7,801.20

Finding the Fourth Proportional to 13,768.37, 19,000.18 and 7,801.20

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Solution

The fourth proportional to 13,768.37, 19,000.18 and 7,801.20 is: 10,765.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.37 : 19,000.18 = 7,801.20 : x
  2. Step 2: Convert to fraction form
    13,768.37/19,000.18 = 7,801.20/x
  3. Step 3: Cross multiply
    13,768.37x = 19,000.18 × 7,801.20
  4. Step 4: Simplify right side
    13,768.37x = 148,224,204.22
  5. Step 5: Solve for x
    x = 148,224,204.22/13,768.37
  6. Step 6: Final answer
    x = 10,765.56

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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.