Home / 13,267.81-18,308.05-7,298.92

Finding the Fourth Proportional to 13,267.81, 18,308.05 and 7,298.92

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Solution

The fourth proportional to 13,267.81, 18,308.05 and 7,298.92 is: 10,071.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.81 : 18,308.05 = 7,298.92 : x
  2. Step 2: Convert to fraction form
    13,267.81/18,308.05 = 7,298.92/x
  3. Step 3: Cross multiply
    13,267.81x = 18,308.05 × 7,298.92
  4. Step 4: Simplify right side
    13,267.81x = 133,628,992.31
  5. Step 5: Solve for x
    x = 133,628,992.31/13,267.81
  6. Step 6: Final answer
    x = 10,071.67

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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.