Home / 12,536.63-18,798.80-5,139.08

Finding the Fourth Proportional to 12,536.63, 18,798.80 and 5,139.08

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Solution

The fourth proportional to 12,536.63, 18,798.80 and 5,139.08 is: 7,706.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,536.63 : 18,798.80 = 5,139.08 : x
  2. Step 2: Convert to fraction form
    12,536.63/18,798.80 = 5,139.08/x
  3. Step 3: Cross multiply
    12,536.63x = 18,798.80 × 5,139.08
  4. Step 4: Simplify right side
    12,536.63x = 96,608,417.41
  5. Step 5: Solve for x
    x = 96,608,417.41/12,536.63
  6. Step 6: Final answer
    x = 7,706.09

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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.