Home / 12,707.40-19,062.93-4,807.77

Finding the Fourth Proportional to 12,707.40, 19,062.93 and 4,807.77

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Solution

The fourth proportional to 12,707.40, 19,062.93 and 4,807.77 is: 7,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.40 : 19,062.93 = 4,807.77 : x
  2. Step 2: Convert to fraction form
    12,707.40/19,062.93 = 4,807.77/x
  3. Step 3: Cross multiply
    12,707.40x = 19,062.93 × 4,807.77
  4. Step 4: Simplify right side
    12,707.40x = 91,650,182.97
  5. Step 5: Solve for x
    x = 91,650,182.97/12,707.40
  6. Step 6: Final answer
    x = 7,212.35

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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.