Home / 18,953.46-26,155.80-10,455.39

Finding the Fourth Proportional to 18,953.46, 26,155.80 and 10,455.39

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Solution

The fourth proportional to 18,953.46, 26,155.80 and 10,455.39 is: 14,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.46 : 26,155.80 = 10,455.39 : x
  2. Step 2: Convert to fraction form
    18,953.46/26,155.80 = 10,455.39/x
  3. Step 3: Cross multiply
    18,953.46x = 26,155.80 × 10,455.39
  4. Step 4: Simplify right side
    18,953.46x = 273,469,089.76
  5. Step 5: Solve for x
    x = 273,469,089.76/18,953.46
  6. Step 6: Final answer
    x = 14,428.45

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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.