Home / 8,436.64-12,620.40-7,054.24

Finding the Fourth Proportional to 8,436.64, 12,620.40 and 7,054.24

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Solution

The fourth proportional to 8,436.64, 12,620.40 and 7,054.24 is: 10,552.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.64 : 12,620.40 = 7,054.24 : x
  2. Step 2: Convert to fraction form
    8,436.64/12,620.40 = 7,054.24/x
  3. Step 3: Cross multiply
    8,436.64x = 12,620.40 × 7,054.24
  4. Step 4: Simplify right side
    8,436.64x = 89,027,330.50
  5. Step 5: Solve for x
    x = 89,027,330.50/8,436.64
  6. Step 6: Final answer
    x = 10,552.46

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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.