Home / 9,819.12-14,744.76-6,447.36

Finding the Fourth Proportional to 9,819.12, 14,744.76 and 6,447.36

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Solution

The fourth proportional to 9,819.12, 14,744.76 and 6,447.36 is: 9,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.12 : 14,744.76 = 6,447.36 : x
  2. Step 2: Convert to fraction form
    9,819.12/14,744.76 = 6,447.36/x
  3. Step 3: Cross multiply
    9,819.12x = 14,744.76 × 6,447.36
  4. Step 4: Simplify right side
    9,819.12x = 95,064,775.83
  5. Step 5: Solve for x
    x = 95,064,775.83/9,819.12
  6. Step 6: Final answer
    x = 9,681.60

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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.