Home / 8,012.48-12,012.36-5,256.32

Finding the Fourth Proportional to 8,012.48, 12,012.36 and 5,256.32

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Solution

The fourth proportional to 8,012.48, 12,012.36 and 5,256.32 is: 7,880.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,012.48 : 12,012.36 = 5,256.32 : x
  2. Step 2: Convert to fraction form
    8,012.48/12,012.36 = 5,256.32/x
  3. Step 3: Cross multiply
    8,012.48x = 12,012.36 × 5,256.32
  4. Step 4: Simplify right side
    8,012.48x = 63,140,808.12
  5. Step 5: Solve for x
    x = 63,140,808.12/8,012.48
  6. Step 6: Final answer
    x = 7,880.31

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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.