Home / 18,570.66-25,628.84-10,615.38

Finding the Fourth Proportional to 18,570.66, 25,628.84 and 10,615.38

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Solution

The fourth proportional to 18,570.66, 25,628.84 and 10,615.38 is: 14,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.66 : 25,628.84 = 10,615.38 : x
  2. Step 2: Convert to fraction form
    18,570.66/25,628.84 = 10,615.38/x
  3. Step 3: Cross multiply
    18,570.66x = 25,628.84 × 10,615.38
  4. Step 4: Simplify right side
    18,570.66x = 272,059,875.56
  5. Step 5: Solve for x
    x = 272,059,875.56/18,570.66
  6. Step 6: Final answer
    x = 14,649.98

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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.