Home / 18,754.04-25,856.34-15,555.62

Finding the Fourth Proportional to 18,754.04, 25,856.34 and 15,555.62

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Solution

The fourth proportional to 18,754.04, 25,856.34 and 15,555.62 is: 21,446.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.04 : 25,856.34 = 15,555.62 : x
  2. Step 2: Convert to fraction form
    18,754.04/25,856.34 = 15,555.62/x
  3. Step 3: Cross multiply
    18,754.04x = 25,856.34 × 15,555.62
  4. Step 4: Simplify right side
    18,754.04x = 402,211,399.63
  5. Step 5: Solve for x
    x = 402,211,399.63/18,754.04
  6. Step 6: Final answer
    x = 21,446.65

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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.