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Finding the Fourth Proportional to 10,323.81, 15,465.06 and 7,975.62

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Solution

The fourth proportional to 10,323.81, 15,465.06 and 7,975.62 is: 11,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,323.81 : 15,465.06 = 7,975.62 : x
  2. Step 2: Convert to fraction form
    10,323.81/15,465.06 = 7,975.62/x
  3. Step 3: Cross multiply
    10,323.81x = 15,465.06 × 7,975.62
  4. Step 4: Simplify right side
    10,323.81x = 123,343,441.84
  5. Step 5: Solve for x
    x = 123,343,441.84/10,323.81
  6. Step 6: Final answer
    x = 11,947.47

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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.