Home / 12,904.40-19,358.08-3,670.40

Finding the Fourth Proportional to 12,904.40, 19,358.08 and 3,670.40

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Solution

The fourth proportional to 12,904.40, 19,358.08 and 3,670.40 is: 5,506.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.40 : 19,358.08 = 3,670.40 : x
  2. Step 2: Convert to fraction form
    12,904.40/19,358.08 = 3,670.40/x
  3. Step 3: Cross multiply
    12,904.40x = 19,358.08 × 3,670.40
  4. Step 4: Simplify right side
    12,904.40x = 71,051,896.83
  5. Step 5: Solve for x
    x = 71,051,896.83/12,904.40
  6. Step 6: Final answer
    x = 5,506.02

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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.