Home / 12,357.55-18,547.26-11,679.58

Finding the Fourth Proportional to 12,357.55, 18,547.26 and 11,679.58

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Solution

The fourth proportional to 12,357.55, 18,547.26 and 11,679.58 is: 17,529.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.55 : 18,547.26 = 11,679.58 : x
  2. Step 2: Convert to fraction form
    12,357.55/18,547.26 = 11,679.58/x
  3. Step 3: Cross multiply
    12,357.55x = 18,547.26 × 11,679.58
  4. Step 4: Simplify right side
    12,357.55x = 216,624,206.95
  5. Step 5: Solve for x
    x = 216,624,206.95/12,357.55
  6. Step 6: Final answer
    x = 17,529.71

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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.