Home / 19,559.16-29,339.82-7,870.86

Finding the Fourth Proportional to 19,559.16, 29,339.82 and 7,870.86

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Solution

The fourth proportional to 19,559.16, 29,339.82 and 7,870.86 is: 11,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,559.16 : 29,339.82 = 7,870.86 : x
  2. Step 2: Convert to fraction form
    19,559.16/29,339.82 = 7,870.86/x
  3. Step 3: Cross multiply
    19,559.16x = 29,339.82 × 7,870.86
  4. Step 4: Simplify right side
    19,559.16x = 230,929,615.65
  5. Step 5: Solve for x
    x = 230,929,615.65/19,559.16
  6. Step 6: Final answer
    x = 11,806.72

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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.