Home / 7,533.81-11,299.75-1,987.57

Finding the Fourth Proportional to 7,533.81, 11,299.75 and 1,987.57

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Solution

The fourth proportional to 7,533.81, 11,299.75 and 1,987.57 is: 2,981.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,533.81 : 11,299.75 = 1,987.57 : x
  2. Step 2: Convert to fraction form
    7,533.81/11,299.75 = 1,987.57/x
  3. Step 3: Cross multiply
    7,533.81x = 11,299.75 × 1,987.57
  4. Step 4: Simplify right side
    7,533.81x = 22,458,977.67
  5. Step 5: Solve for x
    x = 22,458,977.67/7,533.81
  6. Step 6: Final answer
    x = 2,981.09

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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.