Home / 9,288.83-12,815.45-5,307.12

Finding the Fourth Proportional to 9,288.83, 12,815.45 and 5,307.12

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Solution

The fourth proportional to 9,288.83, 12,815.45 and 5,307.12 is: 7,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.83 : 12,815.45 = 5,307.12 : x
  2. Step 2: Convert to fraction form
    9,288.83/12,815.45 = 5,307.12/x
  3. Step 3: Cross multiply
    9,288.83x = 12,815.45 × 5,307.12
  4. Step 4: Simplify right side
    9,288.83x = 68,013,124.37
  5. Step 5: Solve for x
    x = 68,013,124.37/9,288.83
  6. Step 6: Final answer
    x = 7,322.04

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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.