Home / 18,913.63-26,102.20-13,536.57

Finding the Fourth Proportional to 18,913.63, 26,102.20 and 13,536.57

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Solution

The fourth proportional to 18,913.63, 26,102.20 and 13,536.57 is: 18,681.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.63 : 26,102.20 = 13,536.57 : x
  2. Step 2: Convert to fraction form
    18,913.63/26,102.20 = 13,536.57/x
  3. Step 3: Cross multiply
    18,913.63x = 26,102.20 × 13,536.57
  4. Step 4: Simplify right side
    18,913.63x = 353,334,189.77
  5. Step 5: Solve for x
    x = 353,334,189.77/18,913.63
  6. Step 6: Final answer
    x = 18,681.46

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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.