Home / 13,428.41-18,530.67-7,460.45

Finding the Fourth Proportional to 13,428.41, 18,530.67 and 7,460.45

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Solution

The fourth proportional to 13,428.41, 18,530.67 and 7,460.45 is: 10,295.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428.41 : 18,530.67 = 7,460.45 : x
  2. Step 2: Convert to fraction form
    13,428.41/18,530.67 = 7,460.45/x
  3. Step 3: Cross multiply
    13,428.41x = 18,530.67 × 7,460.45
  4. Step 4: Simplify right side
    13,428.41x = 138,247,044.35
  5. Step 5: Solve for x
    x = 138,247,044.35/13,428.41
  6. Step 6: Final answer
    x = 10,295.12

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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.