Home / 11,829.02-16,307.08-9,306.78

Finding the Fourth Proportional to 11,829.02, 16,307.08 and 9,306.78

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Solution

The fourth proportional to 11,829.02, 16,307.08 and 9,306.78 is: 12,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.02 : 16,307.08 = 9,306.78 : x
  2. Step 2: Convert to fraction form
    11,829.02/16,307.08 = 9,306.78/x
  3. Step 3: Cross multiply
    11,829.02x = 16,307.08 × 9,306.78
  4. Step 4: Simplify right side
    11,829.02x = 151,766,406.00
  5. Step 5: Solve for x
    x = 151,766,406.00/11,829.02
  6. Step 6: Final answer
    x = 12,830.01

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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.