Home / 10,777.55-14,872.70-6,531.12

Finding the Fourth Proportional to 10,777.55, 14,872.70 and 6,531.12

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Solution

The fourth proportional to 10,777.55, 14,872.70 and 6,531.12 is: 9,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,777.55 : 14,872.70 = 6,531.12 : x
  2. Step 2: Convert to fraction form
    10,777.55/14,872.70 = 6,531.12/x
  3. Step 3: Cross multiply
    10,777.55x = 14,872.70 × 6,531.12
  4. Step 4: Simplify right side
    10,777.55x = 97,135,355.77
  5. Step 5: Solve for x
    x = 97,135,355.77/10,777.55
  6. Step 6: Final answer
    x = 9,012.75

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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.