Home / 13,132.02-18,122.37-7,829.91

Finding the Fourth Proportional to 13,132.02, 18,122.37 and 7,829.91

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Solution

The fourth proportional to 13,132.02, 18,122.37 and 7,829.91 is: 10,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.02 : 18,122.37 = 7,829.91 : x
  2. Step 2: Convert to fraction form
    13,132.02/18,122.37 = 7,829.91/x
  3. Step 3: Cross multiply
    13,132.02x = 18,122.37 × 7,829.91
  4. Step 4: Simplify right side
    13,132.02x = 141,896,526.09
  5. Step 5: Solve for x
    x = 141,896,526.09/13,132.02
  6. Step 6: Final answer
    x = 10,805.38

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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.