Home / 14,542.58-21,779.55-7,123.70

Finding the Fourth Proportional to 14,542.58, 21,779.55 and 7,123.70

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Solution

The fourth proportional to 14,542.58, 21,779.55 and 7,123.70 is: 10,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,542.58 : 21,779.55 = 7,123.70 : x
  2. Step 2: Convert to fraction form
    14,542.58/21,779.55 = 7,123.70/x
  3. Step 3: Cross multiply
    14,542.58x = 21,779.55 × 7,123.70
  4. Step 4: Simplify right side
    14,542.58x = 155,150,980.34
  5. Step 5: Solve for x
    x = 155,150,980.34/14,542.58
  6. Step 6: Final answer
    x = 10,668.74

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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.