Home / 13,483.48-18,607.30-7,515.54

Finding the Fourth Proportional to 13,483.48, 18,607.30 and 7,515.54

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Solution

The fourth proportional to 13,483.48, 18,607.30 and 7,515.54 is: 10,371.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.48 : 18,607.30 = 7,515.54 : x
  2. Step 2: Convert to fraction form
    13,483.48/18,607.30 = 7,515.54/x
  3. Step 3: Cross multiply
    13,483.48x = 18,607.30 × 7,515.54
  4. Step 4: Simplify right side
    13,483.48x = 139,843,907.44
  5. Step 5: Solve for x
    x = 139,843,907.44/13,483.48
  6. Step 6: Final answer
    x = 10,371.50

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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.