Home / 13,298.49-18,351.08-7,330.21

Finding the Fourth Proportional to 13,298.49, 18,351.08 and 7,330.21

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Solution

The fourth proportional to 13,298.49, 18,351.08 and 7,330.21 is: 10,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.49 : 18,351.08 = 7,330.21 : x
  2. Step 2: Convert to fraction form
    13,298.49/18,351.08 = 7,330.21/x
  3. Step 3: Cross multiply
    13,298.49x = 18,351.08 × 7,330.21
  4. Step 4: Simplify right side
    13,298.49x = 134,517,270.13
  5. Step 5: Solve for x
    x = 134,517,270.13/13,298.49
  6. Step 6: Final answer
    x = 10,115.23

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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.