Home / 9,288.32-12,813.84-5,307.98

Finding the Fourth Proportional to 9,288.32, 12,813.84 and 5,307.98

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Solution

The fourth proportional to 9,288.32, 12,813.84 and 5,307.98 is: 7,322.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.32 : 12,813.84 = 5,307.98 : x
  2. Step 2: Convert to fraction form
    9,288.32/12,813.84 = 5,307.98/x
  3. Step 3: Cross multiply
    9,288.32x = 12,813.84 × 5,307.98
  4. Step 4: Simplify right side
    9,288.32x = 68,015,542.37
  5. Step 5: Solve for x
    x = 68,015,542.37/9,288.32
  6. Step 6: Final answer
    x = 7,322.70

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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.