Home / 14,779.33-20,392.49-9,403.90

Finding the Fourth Proportional to 14,779.33, 20,392.49 and 9,403.90

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Solution

The fourth proportional to 14,779.33, 20,392.49 and 9,403.90 is: 12,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.33 : 20,392.49 = 9,403.90 : x
  2. Step 2: Convert to fraction form
    14,779.33/20,392.49 = 9,403.90/x
  3. Step 3: Cross multiply
    14,779.33x = 20,392.49 × 9,403.90
  4. Step 4: Simplify right side
    14,779.33x = 191,768,936.71
  5. Step 5: Solve for x
    x = 191,768,936.71/14,779.33
  6. Step 6: Final answer
    x = 12,975.48

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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.