Home / 12,078.61-16,669.60-7,044.46

Finding the Fourth Proportional to 12,078.61, 16,669.60 and 7,044.46

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Solution

The fourth proportional to 12,078.61, 16,669.60 and 7,044.46 is: 9,722.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.61 : 16,669.60 = 7,044.46 : x
  2. Step 2: Convert to fraction form
    12,078.61/16,669.60 = 7,044.46/x
  3. Step 3: Cross multiply
    12,078.61x = 16,669.60 × 7,044.46
  4. Step 4: Simplify right side
    12,078.61x = 117,428,271.13
  5. Step 5: Solve for x
    x = 117,428,271.13/12,078.61
  6. Step 6: Final answer
    x = 9,722.00

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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.