Home / 17,928.56-26,894.40-4,781

Finding the Fourth Proportional to 17,928.56, 26,894.40 and 4,781

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Solution

The fourth proportional to 17,928.56, 26,894.40 and 4,781 is: 7,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,928.56 : 26,894.40 = 4,781 : x
  2. Step 2: Convert to fraction form
    17,928.56/26,894.40 = 4,781/x
  3. Step 3: Cross multiply
    17,928.56x = 26,894.40 × 4,781
  4. Step 4: Simplify right side
    17,928.56x = 128,582,126.40
  5. Step 5: Solve for x
    x = 128,582,126.40/17,928.56
  6. Step 6: Final answer
    x = 7,171.92

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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.