Home / 9,928.10-14,904.30-9,855.20

Finding the Fourth Proportional to 9,928.10, 14,904.30 and 9,855.20

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Solution

The fourth proportional to 9,928.10, 14,904.30 and 9,855.20 is: 14,794.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.10 : 14,904.30 = 9,855.20 : x
  2. Step 2: Convert to fraction form
    9,928.10/14,904.30 = 9,855.20/x
  3. Step 3: Cross multiply
    9,928.10x = 14,904.30 × 9,855.20
  4. Step 4: Simplify right side
    9,928.10x = 146,884,857.36
  5. Step 5: Solve for x
    x = 146,884,857.36/9,928.10
  6. Step 6: Final answer
    x = 14,794.86

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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.