Home / 12,962.85-19,449.77-7,707.93

Finding the Fourth Proportional to 12,962.85, 19,449.77 and 7,707.93

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Solution

The fourth proportional to 12,962.85, 19,449.77 and 7,707.93 is: 11,565.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.85 : 19,449.77 = 7,707.93 : x
  2. Step 2: Convert to fraction form
    12,962.85/19,449.77 = 7,707.93/x
  3. Step 3: Cross multiply
    12,962.85x = 19,449.77 × 7,707.93
  4. Step 4: Simplify right side
    12,962.85x = 149,917,427.14
  5. Step 5: Solve for x
    x = 149,917,427.14/12,962.85
  6. Step 6: Final answer
    x = 11,565.16

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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.