Home / 14,756.90-20,364.50-8,788.82

Finding the Fourth Proportional to 14,756.90, 20,364.50 and 8,788.82

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Solution

The fourth proportional to 14,756.90, 20,364.50 and 8,788.82 is: 12,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,756.90 : 20,364.50 = 8,788.82 : x
  2. Step 2: Convert to fraction form
    14,756.90/20,364.50 = 8,788.82/x
  3. Step 3: Cross multiply
    14,756.90x = 20,364.50 × 8,788.82
  4. Step 4: Simplify right side
    14,756.90x = 178,979,779.12
  5. Step 5: Solve for x
    x = 178,979,779.12/14,756.90
  6. Step 6: Final answer
    x = 12,128.55

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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.