Home / 9,015.21-12,438.81-5,035.50

Finding the Fourth Proportional to 9,015.21, 12,438.81 and 5,035.50

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Solution

The fourth proportional to 9,015.21, 12,438.81 and 5,035.50 is: 6,947.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,015.21 : 12,438.81 = 5,035.50 : x
  2. Step 2: Convert to fraction form
    9,015.21/12,438.81 = 5,035.50/x
  3. Step 3: Cross multiply
    9,015.21x = 12,438.81 × 5,035.50
  4. Step 4: Simplify right side
    9,015.21x = 62,635,627.76
  5. Step 5: Solve for x
    x = 62,635,627.76/9,015.21
  6. Step 6: Final answer
    x = 6,947.77

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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.