Home / 13,266.81-18,308.28-7,298.33

Finding the Fourth Proportional to 13,266.81, 18,308.28 and 7,298.33

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Solution

The fourth proportional to 13,266.81, 18,308.28 and 7,298.33 is: 10,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.81 : 18,308.28 = 7,298.33 : x
  2. Step 2: Convert to fraction form
    13,266.81/18,308.28 = 7,298.33/x
  3. Step 3: Cross multiply
    13,266.81x = 18,308.28 × 7,298.33
  4. Step 4: Simplify right side
    13,266.81x = 133,619,777.63
  5. Step 5: Solve for x
    x = 133,619,777.63/13,266.81
  6. Step 6: Final answer
    x = 10,071.73

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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.