Home / 13,021.58-19,535.40-4,256.57

Finding the Fourth Proportional to 13,021.58, 19,535.40 and 4,256.57

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Solution

The fourth proportional to 13,021.58, 19,535.40 and 4,256.57 is: 6,385.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.58 : 19,535.40 = 4,256.57 : x
  2. Step 2: Convert to fraction form
    13,021.58/19,535.40 = 4,256.57/x
  3. Step 3: Cross multiply
    13,021.58x = 19,535.40 × 4,256.57
  4. Step 4: Simplify right side
    13,021.58x = 83,153,699.90
  5. Step 5: Solve for x
    x = 83,153,699.90/13,021.58
  6. Step 6: Final answer
    x = 6,385.84

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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.