Home / 9,779.90-14,644.80-5,392.49

Finding the Fourth Proportional to 9,779.90, 14,644.80 and 5,392.49

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Solution

The fourth proportional to 9,779.90, 14,644.80 and 5,392.49 is: 8,074.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,779.90 : 14,644.80 = 5,392.49 : x
  2. Step 2: Convert to fraction form
    9,779.90/14,644.80 = 5,392.49/x
  3. Step 3: Cross multiply
    9,779.90x = 14,644.80 × 5,392.49
  4. Step 4: Simplify right side
    9,779.90x = 78,971,864.33
  5. Step 5: Solve for x
    x = 78,971,864.33/9,779.90
  6. Step 6: Final answer
    x = 8,074.92

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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.