Home / 13,630.33-20,445.47-4,271.07

Finding the Fourth Proportional to 13,630.33, 20,445.47 and 4,271.07

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Solution

The fourth proportional to 13,630.33, 20,445.47 and 4,271.07 is: 6,406.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.33 : 20,445.47 = 4,271.07 : x
  2. Step 2: Convert to fraction form
    13,630.33/20,445.47 = 4,271.07/x
  3. Step 3: Cross multiply
    13,630.33x = 20,445.47 × 4,271.07
  4. Step 4: Simplify right side
    13,630.33x = 87,323,931.33
  5. Step 5: Solve for x
    x = 87,323,931.33/13,630.33
  6. Step 6: Final answer
    x = 6,406.59

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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.