Home / 12,904.24-19,330.44-7,707.28

Finding the Fourth Proportional to 12,904.24, 19,330.44 and 7,707.28

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Solution

The fourth proportional to 12,904.24, 19,330.44 and 7,707.28 is: 11,545.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.24 : 19,330.44 = 7,707.28 : x
  2. Step 2: Convert to fraction form
    12,904.24/19,330.44 = 7,707.28/x
  3. Step 3: Cross multiply
    12,904.24x = 19,330.44 × 7,707.28
  4. Step 4: Simplify right side
    12,904.24x = 148,985,113.60
  5. Step 5: Solve for x
    x = 148,985,113.60/12,904.24
  6. Step 6: Final answer
    x = 11,545.44

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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.