Home / 12,263.79-18,407.22-6,424.50

Finding the Fourth Proportional to 12,263.79, 18,407.22 and 6,424.50

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Solution

The fourth proportional to 12,263.79, 18,407.22 and 6,424.50 is: 9,642.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,263.79 : 18,407.22 = 6,424.50 : x
  2. Step 2: Convert to fraction form
    12,263.79/18,407.22 = 6,424.50/x
  3. Step 3: Cross multiply
    12,263.79x = 18,407.22 × 6,424.50
  4. Step 4: Simplify right side
    12,263.79x = 118,257,184.89
  5. Step 5: Solve for x
    x = 118,257,184.89/12,263.79
  6. Step 6: Final answer
    x = 9,642.79

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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.