Home / 19,306.89-28,959.12-7,458.30

Finding the Fourth Proportional to 19,306.89, 28,959.12 and 7,458.30

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Solution

The fourth proportional to 19,306.89, 28,959.12 and 7,458.30 is: 11,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,306.89 : 28,959.12 = 7,458.30 : x
  2. Step 2: Convert to fraction form
    19,306.89/28,959.12 = 7,458.30/x
  3. Step 3: Cross multiply
    19,306.89x = 28,959.12 × 7,458.30
  4. Step 4: Simplify right side
    19,306.89x = 215,985,804.70
  5. Step 5: Solve for x
    x = 215,985,804.70/19,306.89
  6. Step 6: Final answer
    x = 11,186.98

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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.