Home / 13,108.17-18,088.64-7,442.18

Finding the Fourth Proportional to 13,108.17, 18,088.64 and 7,442.18

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Solution

The fourth proportional to 13,108.17, 18,088.64 and 7,442.18 is: 10,269.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.17 : 18,088.64 = 7,442.18 : x
  2. Step 2: Convert to fraction form
    13,108.17/18,088.64 = 7,442.18/x
  3. Step 3: Cross multiply
    13,108.17x = 18,088.64 × 7,442.18
  4. Step 4: Simplify right side
    13,108.17x = 134,618,824.39
  5. Step 5: Solve for x
    x = 134,618,824.39/13,108.17
  6. Step 6: Final answer
    x = 10,269.84

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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.