Home / 13,542.86-20,209.70-12,303.56

Finding the Fourth Proportional to 13,542.86, 20,209.70 and 12,303.56

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Solution

The fourth proportional to 13,542.86, 20,209.70 and 12,303.56 is: 18,360.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.86 : 20,209.70 = 12,303.56 : x
  2. Step 2: Convert to fraction form
    13,542.86/20,209.70 = 12,303.56/x
  3. Step 3: Cross multiply
    13,542.86x = 20,209.70 × 12,303.56
  4. Step 4: Simplify right side
    13,542.86x = 248,651,256.53
  5. Step 5: Solve for x
    x = 248,651,256.53/13,542.86
  6. Step 6: Final answer
    x = 18,360.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.