Home / 13,108.36-18,085.08-7,442.52

Finding the Fourth Proportional to 13,108.36, 18,085.08 and 7,442.52

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Solution

The fourth proportional to 13,108.36, 18,085.08 and 7,442.52 is: 10,268.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.36 : 18,085.08 = 7,442.52 : x
  2. Step 2: Convert to fraction form
    13,108.36/18,085.08 = 7,442.52/x
  3. Step 3: Cross multiply
    13,108.36x = 18,085.08 × 7,442.52
  4. Step 4: Simplify right side
    13,108.36x = 134,598,569.60
  5. Step 5: Solve for x
    x = 134,598,569.60/13,108.36
  6. Step 6: Final answer
    x = 10,268.15

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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.