Home / 15,011.58-20,647.59-12,303.36

Finding the Fourth Proportional to 15,011.58, 20,647.59 and 12,303.36

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Solution

The fourth proportional to 15,011.58, 20,647.59 and 12,303.36 is: 16,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.58 : 20,647.59 = 12,303.36 : x
  2. Step 2: Convert to fraction form
    15,011.58/20,647.59 = 12,303.36/x
  3. Step 3: Cross multiply
    15,011.58x = 20,647.59 × 12,303.36
  4. Step 4: Simplify right side
    15,011.58x = 254,034,732.90
  5. Step 5: Solve for x
    x = 254,034,732.90/15,011.58
  6. Step 6: Final answer
    x = 16,922.58

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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.