Home / 12,412.95-17,120.26-9,054.59

Finding the Fourth Proportional to 12,412.95, 17,120.26 and 9,054.59

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Solution

The fourth proportional to 12,412.95, 17,120.26 and 9,054.59 is: 12,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.95 : 17,120.26 = 9,054.59 : x
  2. Step 2: Convert to fraction form
    12,412.95/17,120.26 = 9,054.59/x
  3. Step 3: Cross multiply
    12,412.95x = 17,120.26 × 9,054.59
  4. Step 4: Simplify right side
    12,412.95x = 155,016,860.71
  5. Step 5: Solve for x
    x = 155,016,860.71/12,412.95
  6. Step 6: Final answer
    x = 12,488.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.