Home / 15,905.79-23,858.91-4,812.57

Finding the Fourth Proportional to 15,905.79, 23,858.91 and 4,812.57

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Solution

The fourth proportional to 15,905.79, 23,858.91 and 4,812.57 is: 7,218.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.79 : 23,858.91 = 4,812.57 : x
  2. Step 2: Convert to fraction form
    15,905.79/23,858.91 = 4,812.57/x
  3. Step 3: Cross multiply
    15,905.79x = 23,858.91 × 4,812.57
  4. Step 4: Simplify right side
    15,905.79x = 114,822,674.50
  5. Step 5: Solve for x
    x = 114,822,674.50/15,905.79
  6. Step 6: Final answer
    x = 7,218.92

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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.