Home / 15,423.45-21,283.50-8,710.44

Finding the Fourth Proportional to 15,423.45, 21,283.50 and 8,710.44

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Solution

The fourth proportional to 15,423.45, 21,283.50 and 8,710.44 is: 12,019.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.45 : 21,283.50 = 8,710.44 : x
  2. Step 2: Convert to fraction form
    15,423.45/21,283.50 = 8,710.44/x
  3. Step 3: Cross multiply
    15,423.45x = 21,283.50 × 8,710.44
  4. Step 4: Simplify right side
    15,423.45x = 185,388,552.98
  5. Step 5: Solve for x
    x = 185,388,552.98/15,423.45
  6. Step 6: Final answer
    x = 12,019.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.