Home / 13,368.38-20,045.21-9,156.48

Finding the Fourth Proportional to 13,368.38, 20,045.21 and 9,156.48

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Solution

The fourth proportional to 13,368.38, 20,045.21 and 9,156.48 is: 13,729.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.38 : 20,045.21 = 9,156.48 : x
  2. Step 2: Convert to fraction form
    13,368.38/20,045.21 = 9,156.48/x
  3. Step 3: Cross multiply
    13,368.38x = 20,045.21 × 9,156.48
  4. Step 4: Simplify right side
    13,368.38x = 183,543,443.51
  5. Step 5: Solve for x
    x = 183,543,443.51/13,368.38
  6. Step 6: Final answer
    x = 13,729.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.