Home / 13,516.63-18,651.59-9,271.32

Finding the Fourth Proportional to 13,516.63, 18,651.59 and 9,271.32

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Solution

The fourth proportional to 13,516.63, 18,651.59 and 9,271.32 is: 12,793.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.63 : 18,651.59 = 9,271.32 : x
  2. Step 2: Convert to fraction form
    13,516.63/18,651.59 = 9,271.32/x
  3. Step 3: Cross multiply
    13,516.63x = 18,651.59 × 9,271.32
  4. Step 4: Simplify right side
    13,516.63x = 172,924,859.40
  5. Step 5: Solve for x
    x = 172,924,859.40/13,516.63
  6. Step 6: Final answer
    x = 12,793.49

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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.