Home / 14,779.77-20,396.07-10,538.21

Finding the Fourth Proportional to 14,779.77, 20,396.07 and 10,538.21

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Solution

The fourth proportional to 14,779.77, 20,396.07 and 10,538.21 is: 14,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.77 : 20,396.07 = 10,538.21 : x
  2. Step 2: Convert to fraction form
    14,779.77/20,396.07 = 10,538.21/x
  3. Step 3: Cross multiply
    14,779.77x = 20,396.07 × 10,538.21
  4. Step 4: Simplify right side
    14,779.77x = 214,938,062.46
  5. Step 5: Solve for x
    x = 214,938,062.46/14,779.77
  6. Step 6: Final answer
    x = 14,542.72

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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.