Home / 11,750.42-16,215.80-6,445.50

Finding the Fourth Proportional to 11,750.42, 16,215.80 and 6,445.50

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Solution

The fourth proportional to 11,750.42, 16,215.80 and 6,445.50 is: 8,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.42 : 16,215.80 = 6,445.50 : x
  2. Step 2: Convert to fraction form
    11,750.42/16,215.80 = 6,445.50/x
  3. Step 3: Cross multiply
    11,750.42x = 16,215.80 × 6,445.50
  4. Step 4: Simplify right side
    11,750.42x = 104,518,938.90
  5. Step 5: Solve for x
    x = 104,518,938.90/11,750.42
  6. Step 6: Final answer
    x = 8,894.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.