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Finding the Fourth Proportional to 15,640.70, 23,461.04 and 5,259.74

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Solution

The fourth proportional to 15,640.70, 23,461.04 and 5,259.74 is: 7,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.70 : 23,461.04 = 5,259.74 : x
  2. Step 2: Convert to fraction form
    15,640.70/23,461.04 = 5,259.74/x
  3. Step 3: Cross multiply
    15,640.70x = 23,461.04 × 5,259.74
  4. Step 4: Simplify right side
    15,640.70x = 123,398,866.37
  5. Step 5: Solve for x
    x = 123,398,866.37/15,640.70
  6. Step 6: Final answer
    x = 7,889.60

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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.