Home / 18,634.70-25,715.67-13,875.93

Finding the Fourth Proportional to 18,634.70, 25,715.67 and 13,875.93

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Solution

The fourth proportional to 18,634.70, 25,715.67 and 13,875.93 is: 19,148.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,634.70 : 25,715.67 = 13,875.93 : x
  2. Step 2: Convert to fraction form
    18,634.70/25,715.67 = 13,875.93/x
  3. Step 3: Cross multiply
    18,634.70x = 25,715.67 × 13,875.93
  4. Step 4: Simplify right side
    18,634.70x = 356,828,708.24
  5. Step 5: Solve for x
    x = 356,828,708.24/18,634.70
  6. Step 6: Final answer
    x = 19,148.62

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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.