Home / 13,266.40-18,308.16-7,298.56

Finding the Fourth Proportional to 13,266.40, 18,308.16 and 7,298.56

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Solution

The fourth proportional to 13,266.40, 18,308.16 and 7,298.56 is: 10,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.40 : 18,308.16 = 7,298.56 : x
  2. Step 2: Convert to fraction form
    13,266.40/18,308.16 = 7,298.56/x
  3. Step 3: Cross multiply
    13,266.40x = 18,308.16 × 7,298.56
  4. Step 4: Simplify right side
    13,266.40x = 133,623,204.25
  5. Step 5: Solve for x
    x = 133,623,204.25/13,266.40
  6. Step 6: Final answer
    x = 10,072.30

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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.