Home / 13,772.20-19,005.69-7,484.53

Finding the Fourth Proportional to 13,772.20, 19,005.69 and 7,484.53

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Solution

The fourth proportional to 13,772.20, 19,005.69 and 7,484.53 is: 10,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.20 : 19,005.69 = 7,484.53 : x
  2. Step 2: Convert to fraction form
    13,772.20/19,005.69 = 7,484.53/x
  3. Step 3: Cross multiply
    13,772.20x = 19,005.69 × 7,484.53
  4. Step 4: Simplify right side
    13,772.20x = 142,248,656.98
  5. Step 5: Solve for x
    x = 142,248,656.98/13,772.20
  6. Step 6: Final answer
    x = 10,328.68

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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.