Home / 7,110.94-9,780.29-6,225.20

Finding the Fourth Proportional to 7,110.94, 9,780.29 and 6,225.20

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Solution

The fourth proportional to 7,110.94, 9,780.29 and 6,225.20 is: 8,562.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.94 : 9,780.29 = 6,225.20 : x
  2. Step 2: Convert to fraction form
    7,110.94/9,780.29 = 6,225.20/x
  3. Step 3: Cross multiply
    7,110.94x = 9,780.29 × 6,225.20
  4. Step 4: Simplify right side
    7,110.94x = 60,884,254.63
  5. Step 5: Solve for x
    x = 60,884,254.63/7,110.94
  6. Step 6: Final answer
    x = 8,562.06

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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.