Home / 15,674.07-21,630.21-8,959.84

Finding the Fourth Proportional to 15,674.07, 21,630.21 and 8,959.84

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Solution

The fourth proportional to 15,674.07, 21,630.21 and 8,959.84 is: 12,364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,674.07 : 21,630.21 = 8,959.84 : x
  2. Step 2: Convert to fraction form
    15,674.07/21,630.21 = 8,959.84/x
  3. Step 3: Cross multiply
    15,674.07x = 21,630.21 × 8,959.84
  4. Step 4: Simplify right side
    15,674.07x = 193,803,269.53
  5. Step 5: Solve for x
    x = 193,803,269.53/15,674.07
  6. Step 6: Final answer
    x = 12,364.58

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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.