Home / 15,639.46-23,456.70-5,109.39

Finding the Fourth Proportional to 15,639.46, 23,456.70 and 5,109.39

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Solution

The fourth proportional to 15,639.46, 23,456.70 and 5,109.39 is: 7,663.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.46 : 23,456.70 = 5,109.39 : x
  2. Step 2: Convert to fraction form
    15,639.46/23,456.70 = 5,109.39/x
  3. Step 3: Cross multiply
    15,639.46x = 23,456.70 × 5,109.39
  4. Step 4: Simplify right side
    15,639.46x = 119,849,428.41
  5. Step 5: Solve for x
    x = 119,849,428.41/15,639.46
  6. Step 6: Final answer
    x = 7,663.27

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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.