Home / 18,638.80-25,719.61-10,570.82

Finding the Fourth Proportional to 18,638.80, 25,719.61 and 10,570.82

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Solution

The fourth proportional to 18,638.80, 25,719.61 and 10,570.82 is: 14,586.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.80 : 25,719.61 = 10,570.82 : x
  2. Step 2: Convert to fraction form
    18,638.80/25,719.61 = 10,570.82/x
  3. Step 3: Cross multiply
    18,638.80x = 25,719.61 × 10,570.82
  4. Step 4: Simplify right side
    18,638.80x = 271,877,313.34
  5. Step 5: Solve for x
    x = 271,877,313.34/18,638.80
  6. Step 6: Final answer
    x = 14,586.63

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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.