Home / 14,779.90-20,395.75-8,808.47

Finding the Fourth Proportional to 14,779.90, 20,395.75 and 8,808.47

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Solution

The fourth proportional to 14,779.90, 20,395.75 and 8,808.47 is: 12,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.90 : 20,395.75 = 8,808.47 : x
  2. Step 2: Convert to fraction form
    14,779.90/20,395.75 = 8,808.47/x
  3. Step 3: Cross multiply
    14,779.90x = 20,395.75 × 8,808.47
  4. Step 4: Simplify right side
    14,779.90x = 179,655,205.98
  5. Step 5: Solve for x
    x = 179,655,205.98/14,779.90
  6. Step 6: Final answer
    x = 12,155.38

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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.