Home / 12,140.63-18,206.53-4,240.93

Finding the Fourth Proportional to 12,140.63, 18,206.53 and 4,240.93

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Solution

The fourth proportional to 12,140.63, 18,206.53 and 4,240.93 is: 6,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.63 : 18,206.53 = 4,240.93 : x
  2. Step 2: Convert to fraction form
    12,140.63/18,206.53 = 4,240.93/x
  3. Step 3: Cross multiply
    12,140.63x = 18,206.53 × 4,240.93
  4. Step 4: Simplify right side
    12,140.63x = 77,212,598.07
  5. Step 5: Solve for x
    x = 77,212,598.07/12,140.63
  6. Step 6: Final answer
    x = 6,359.85

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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.