Home / 12,358.09-18,533.30-4,459.58

Finding the Fourth Proportional to 12,358.09, 18,533.30 and 4,459.58

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Solution

The fourth proportional to 12,358.09, 18,533.30 and 4,459.58 is: 6,687.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.09 : 18,533.30 = 4,459.58 : x
  2. Step 2: Convert to fraction form
    12,358.09/18,533.30 = 4,459.58/x
  3. Step 3: Cross multiply
    12,358.09x = 18,533.30 × 4,459.58
  4. Step 4: Simplify right side
    12,358.09x = 82,650,734.01
  5. Step 5: Solve for x
    x = 82,650,734.01/12,358.09
  6. Step 6: Final answer
    x = 6,687.99

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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.