Home / 18,492.93-27,740.79-5,345.40

Finding the Fourth Proportional to 18,492.93, 27,740.79 and 5,345.40

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Solution

The fourth proportional to 18,492.93, 27,740.79 and 5,345.40 is: 8,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.93 : 27,740.79 = 5,345.40 : x
  2. Step 2: Convert to fraction form
    18,492.93/27,740.79 = 5,345.40/x
  3. Step 3: Cross multiply
    18,492.93x = 27,740.79 × 5,345.40
  4. Step 4: Simplify right side
    18,492.93x = 148,285,618.87
  5. Step 5: Solve for x
    x = 148,285,618.87/18,492.93
  6. Step 6: Final answer
    x = 8,018.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.