Home / 12,001.10-16,556.40-7,521.80

Finding the Fourth Proportional to 12,001.10, 16,556.40 and 7,521.80

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Solution

The fourth proportional to 12,001.10, 16,556.40 and 7,521.80 is: 10,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.10 : 16,556.40 = 7,521.80 : x
  2. Step 2: Convert to fraction form
    12,001.10/16,556.40 = 7,521.80/x
  3. Step 3: Cross multiply
    12,001.10x = 16,556.40 × 7,521.80
  4. Step 4: Simplify right side
    12,001.10x = 124,533,929.52
  5. Step 5: Solve for x
    x = 124,533,929.52/12,001.10
  6. Step 6: Final answer
    x = 10,376.88

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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.