Home / 18,435.34-27,657.81-5,288.74

Finding the Fourth Proportional to 18,435.34, 27,657.81 and 5,288.74

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Solution

The fourth proportional to 18,435.34, 27,657.81 and 5,288.74 is: 7,934.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.34 : 27,657.81 = 5,288.74 : x
  2. Step 2: Convert to fraction form
    18,435.34/27,657.81 = 5,288.74/x
  3. Step 3: Cross multiply
    18,435.34x = 27,657.81 × 5,288.74
  4. Step 4: Simplify right side
    18,435.34x = 146,274,966.06
  5. Step 5: Solve for x
    x = 146,274,966.06/18,435.34
  6. Step 6: Final answer
    x = 7,934.49

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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.