Home / 14,243.07-19,653.76-7,869.29

Finding the Fourth Proportional to 14,243.07, 19,653.76 and 7,869.29

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Solution

The fourth proportional to 14,243.07, 19,653.76 and 7,869.29 is: 10,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.07 : 19,653.76 = 7,869.29 : x
  2. Step 2: Convert to fraction form
    14,243.07/19,653.76 = 7,869.29/x
  3. Step 3: Cross multiply
    14,243.07x = 19,653.76 × 7,869.29
  4. Step 4: Simplify right side
    14,243.07x = 154,661,038.76
  5. Step 5: Solve for x
    x = 154,661,038.76/14,243.07
  6. Step 6: Final answer
    x = 10,858.69

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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.