Home / 19,212.40-28,807.08-7,511.68

Finding the Fourth Proportional to 19,212.40, 28,807.08 and 7,511.68

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Solution

The fourth proportional to 19,212.40, 28,807.08 and 7,511.68 is: 11,263.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.40 : 28,807.08 = 7,511.68 : x
  2. Step 2: Convert to fraction form
    19,212.40/28,807.08 = 7,511.68/x
  3. Step 3: Cross multiply
    19,212.40x = 28,807.08 × 7,511.68
  4. Step 4: Simplify right side
    19,212.40x = 216,389,566.69
  5. Step 5: Solve for x
    x = 216,389,566.69/19,212.40
  6. Step 6: Final answer
    x = 11,263.02

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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.