Home / 19,270.61-28,905.76-9,913.25

Finding the Fourth Proportional to 19,270.61, 28,905.76 and 9,913.25

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Solution

The fourth proportional to 19,270.61, 28,905.76 and 9,913.25 is: 14,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.61 : 28,905.76 = 9,913.25 : x
  2. Step 2: Convert to fraction form
    19,270.61/28,905.76 = 9,913.25/x
  3. Step 3: Cross multiply
    19,270.61x = 28,905.76 × 9,913.25
  4. Step 4: Simplify right side
    19,270.61x = 286,550,025.32
  5. Step 5: Solve for x
    x = 286,550,025.32/19,270.61
  6. Step 6: Final answer
    x = 14,869.80

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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.