Home / 10,822.16-16,271.88-9,966.80

Finding the Fourth Proportional to 10,822.16, 16,271.88 and 9,966.80

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Solution

The fourth proportional to 10,822.16, 16,271.88 and 9,966.80 is: 14,985.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,822.16 : 16,271.88 = 9,966.80 : x
  2. Step 2: Convert to fraction form
    10,822.16/16,271.88 = 9,966.80/x
  3. Step 3: Cross multiply
    10,822.16x = 16,271.88 × 9,966.80
  4. Step 4: Simplify right side
    10,822.16x = 162,178,573.58
  5. Step 5: Solve for x
    x = 162,178,573.58/10,822.16
  6. Step 6: Final answer
    x = 14,985.79

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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.