Home / 10,454.55-15,703.70-8,814.30

Finding the Fourth Proportional to 10,454.55, 15,703.70 and 8,814.30

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Solution

The fourth proportional to 10,454.55, 15,703.70 and 8,814.30 is: 13,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,454.55 : 15,703.70 = 8,814.30 : x
  2. Step 2: Convert to fraction form
    10,454.55/15,703.70 = 8,814.30/x
  3. Step 3: Cross multiply
    10,454.55x = 15,703.70 × 8,814.30
  4. Step 4: Simplify right side
    10,454.55x = 138,417,078.84
  5. Step 5: Solve for x
    x = 138,417,078.84/10,454.55
  6. Step 6: Final answer
    x = 13,239.89

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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.