Home / 12,698.75-19,056.77-7,637.06

Finding the Fourth Proportional to 12,698.75, 19,056.77 and 7,637.06

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Solution

The fourth proportional to 12,698.75, 19,056.77 and 7,637.06 is: 11,460.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.75 : 19,056.77 = 7,637.06 : x
  2. Step 2: Convert to fraction form
    12,698.75/19,056.77 = 7,637.06/x
  3. Step 3: Cross multiply
    12,698.75x = 19,056.77 × 7,637.06
  4. Step 4: Simplify right side
    12,698.75x = 145,537,657.71
  5. Step 5: Solve for x
    x = 145,537,657.71/12,698.75
  6. Step 6: Final answer
    x = 11,460.79

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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.