Home / 13,326.10-19,969.71-7,484.38

Finding the Fourth Proportional to 13,326.10, 19,969.71 and 7,484.38

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Solution

The fourth proportional to 13,326.10, 19,969.71 and 7,484.38 is: 11,215.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.10 : 19,969.71 = 7,484.38 : x
  2. Step 2: Convert to fraction form
    13,326.10/19,969.71 = 7,484.38/x
  3. Step 3: Cross multiply
    13,326.10x = 19,969.71 × 7,484.38
  4. Step 4: Simplify right side
    13,326.10x = 149,460,898.13
  5. Step 5: Solve for x
    x = 149,460,898.13/13,326.10
  6. Step 6: Final answer
    x = 11,215.65

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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.