Home / 12,605.13-18,903.28-3,718.10

Finding the Fourth Proportional to 12,605.13, 18,903.28 and 3,718.10

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Solution

The fourth proportional to 12,605.13, 18,903.28 and 3,718.10 is: 5,575.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.13 : 18,903.28 = 3,718.10 : x
  2. Step 2: Convert to fraction form
    12,605.13/18,903.28 = 3,718.10/x
  3. Step 3: Cross multiply
    12,605.13x = 18,903.28 × 3,718.10
  4. Step 4: Simplify right side
    12,605.13x = 70,284,256.19
  5. Step 5: Solve for x
    x = 70,284,256.19/12,605.13
  6. Step 6: Final answer
    x = 5,575.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.