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Finding the Fourth Proportional to 19,045.48, 28,558.86 and 7,948.84

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Solution

The fourth proportional to 19,045.48, 28,558.86 and 7,948.84 is: 11,919.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,045.48 : 28,558.86 = 7,948.84 : x
  2. Step 2: Convert to fraction form
    19,045.48/28,558.86 = 7,948.84/x
  3. Step 3: Cross multiply
    19,045.48x = 28,558.86 × 7,948.84
  4. Step 4: Simplify right side
    19,045.48x = 227,009,808.72
  5. Step 5: Solve for x
    x = 227,009,808.72/19,045.48
  6. Step 6: Final answer
    x = 11,919.35

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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.