Home / 13,260.38-18,298.80-7,291.67

Finding the Fourth Proportional to 13,260.38, 18,298.80 and 7,291.67

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Solution

The fourth proportional to 13,260.38, 18,298.80 and 7,291.67 is: 10,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.38 : 18,298.80 = 7,291.67 : x
  2. Step 2: Convert to fraction form
    13,260.38/18,298.80 = 7,291.67/x
  3. Step 3: Cross multiply
    13,260.38x = 18,298.80 × 7,291.67
  4. Step 4: Simplify right side
    13,260.38x = 133,428,719.50
  5. Step 5: Solve for x
    x = 133,428,719.50/13,260.38
  6. Step 6: Final answer
    x = 10,062.21

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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.