Home / 12,531.48-18,798.84-4,207.92

Finding the Fourth Proportional to 12,531.48, 18,798.84 and 4,207.92

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Solution

The fourth proportional to 12,531.48, 18,798.84 and 4,207.92 is: 6,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.48 : 18,798.84 = 4,207.92 : x
  2. Step 2: Convert to fraction form
    12,531.48/18,798.84 = 4,207.92/x
  3. Step 3: Cross multiply
    12,531.48x = 18,798.84 × 4,207.92
  4. Step 4: Simplify right side
    12,531.48x = 79,104,014.81
  5. Step 5: Solve for x
    x = 79,104,014.81/12,531.48
  6. Step 6: Final answer
    x = 6,312.42

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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.