Home / 12,570.94-18,858.84-4,779.14

Finding the Fourth Proportional to 12,570.94, 18,858.84 and 4,779.14

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Solution

The fourth proportional to 12,570.94, 18,858.84 and 4,779.14 is: 7,169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.94 : 18,858.84 = 4,779.14 : x
  2. Step 2: Convert to fraction form
    12,570.94/18,858.84 = 4,779.14/x
  3. Step 3: Cross multiply
    12,570.94x = 18,858.84 × 4,779.14
  4. Step 4: Simplify right side
    12,570.94x = 90,129,030.46
  5. Step 5: Solve for x
    x = 90,129,030.46/12,570.94
  6. Step 6: Final answer
    x = 7,169.64

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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.