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Finding the Fourth Proportional to 15,998.95, 23,999.70 and 4,312.00

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Solution

The fourth proportional to 15,998.95, 23,999.70 and 4,312.00 is: 6,468.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,998.95 : 23,999.70 = 4,312.00 : x
  2. Step 2: Convert to fraction form
    15,998.95/23,999.70 = 4,312.00/x
  3. Step 3: Cross multiply
    15,998.95x = 23,999.70 × 4,312.00
  4. Step 4: Simplify right side
    15,998.95x = 103,486,586.40
  5. Step 5: Solve for x
    x = 103,486,586.40/15,998.95
  6. Step 6: Final answer
    x = 6,468.34

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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.