Home / 18,928.89-26,122.10-10,973.48

Finding the Fourth Proportional to 18,928.89, 26,122.10 and 10,973.48

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Solution

The fourth proportional to 18,928.89, 26,122.10 and 10,973.48 is: 15,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.89 : 26,122.10 = 10,973.48 : x
  2. Step 2: Convert to fraction form
    18,928.89/26,122.10 = 10,973.48/x
  3. Step 3: Cross multiply
    18,928.89x = 26,122.10 × 10,973.48
  4. Step 4: Simplify right side
    18,928.89x = 286,650,156.43
  5. Step 5: Solve for x
    x = 286,650,156.43/18,928.89
  6. Step 6: Final answer
    x = 15,143.53

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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.