Home / 13,053.02-18,021.84-7,749.54

Finding the Fourth Proportional to 13,053.02, 18,021.84 and 7,749.54

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Solution

The fourth proportional to 13,053.02, 18,021.84 and 7,749.54 is: 10,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.02 : 18,021.84 = 7,749.54 : x
  2. Step 2: Convert to fraction form
    13,053.02/18,021.84 = 7,749.54/x
  3. Step 3: Cross multiply
    13,053.02x = 18,021.84 × 7,749.54
  4. Step 4: Simplify right side
    13,053.02x = 139,660,969.95
  5. Step 5: Solve for x
    x = 139,660,969.95/13,053.02
  6. Step 6: Final answer
    x = 10,699.51

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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.