Home / 13,671.50-20,509.23-4,308.35

Finding the Fourth Proportional to 13,671.50, 20,509.23 and 4,308.35

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Solution

The fourth proportional to 13,671.50, 20,509.23 and 4,308.35 is: 6,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.50 : 20,509.23 = 4,308.35 : x
  2. Step 2: Convert to fraction form
    13,671.50/20,509.23 = 4,308.35/x
  3. Step 3: Cross multiply
    13,671.50x = 20,509.23 × 4,308.35
  4. Step 4: Simplify right side
    13,671.50x = 88,360,941.07
  5. Step 5: Solve for x
    x = 88,360,941.07/13,671.50
  6. Step 6: Final answer
    x = 6,463.15

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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.