Home / 14,880.90-20,536.74-8,507.72

Finding the Fourth Proportional to 14,880.90, 20,536.74 and 8,507.72

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Solution

The fourth proportional to 14,880.90, 20,536.74 and 8,507.72 is: 11,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,880.90 : 20,536.74 = 8,507.72 : x
  2. Step 2: Convert to fraction form
    14,880.90/20,536.74 = 8,507.72/x
  3. Step 3: Cross multiply
    14,880.90x = 20,536.74 × 8,507.72
  4. Step 4: Simplify right side
    14,880.90x = 174,720,833.63
  5. Step 5: Solve for x
    x = 174,720,833.63/14,880.90
  6. Step 6: Final answer
    x = 11,741.28

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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.