Home / 18,928.24-26,121-10,970.92

Finding the Fourth Proportional to 18,928.24, 26,121 and 10,970.92

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Solution

The fourth proportional to 18,928.24, 26,121 and 10,970.92 is: 15,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.24 : 26,121 = 10,970.92 : x
  2. Step 2: Convert to fraction form
    18,928.24/26,121 = 10,970.92/x
  3. Step 3: Cross multiply
    18,928.24x = 26,121 × 10,970.92
  4. Step 4: Simplify right side
    18,928.24x = 286,571,401.32
  5. Step 5: Solve for x
    x = 286,571,401.32/18,928.24
  6. Step 6: Final answer
    x = 15,139.89

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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.