Home / 13,768.36-19,000.40-7,480.76

Finding the Fourth Proportional to 13,768.36, 19,000.40 and 7,480.76

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Solution

The fourth proportional to 13,768.36, 19,000.40 and 7,480.76 is: 10,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.36 : 19,000.40 = 7,480.76 : x
  2. Step 2: Convert to fraction form
    13,768.36/19,000.40 = 7,480.76/x
  3. Step 3: Cross multiply
    13,768.36x = 19,000.40 × 7,480.76
  4. Step 4: Simplify right side
    13,768.36x = 142,137,432.30
  5. Step 5: Solve for x
    x = 142,137,432.30/13,768.36
  6. Step 6: Final answer
    x = 10,323.48

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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.