Home / 13,779.27-20,678.10-8,852.45

Finding the Fourth Proportional to 13,779.27, 20,678.10 and 8,852.45

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Solution

The fourth proportional to 13,779.27, 20,678.10 and 8,852.45 is: 13,284.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.27 : 20,678.10 = 8,852.45 : x
  2. Step 2: Convert to fraction form
    13,779.27/20,678.10 = 8,852.45/x
  3. Step 3: Cross multiply
    13,779.27x = 20,678.10 × 8,852.45
  4. Step 4: Simplify right side
    13,779.27x = 183,051,698.69
  5. Step 5: Solve for x
    x = 183,051,698.69/13,779.27
  6. Step 6: Final answer
    x = 13,284.57

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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.