Home / 11,070.77-15,275.12-6,289.54

Finding the Fourth Proportional to 11,070.77, 15,275.12 and 6,289.54

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Solution

The fourth proportional to 11,070.77, 15,275.12 and 6,289.54 is: 8,678.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,070.77 : 15,275.12 = 6,289.54 : x
  2. Step 2: Convert to fraction form
    11,070.77/15,275.12 = 6,289.54/x
  3. Step 3: Cross multiply
    11,070.77x = 15,275.12 × 6,289.54
  4. Step 4: Simplify right side
    11,070.77x = 96,073,408.61
  5. Step 5: Solve for x
    x = 96,073,408.61/11,070.77
  6. Step 6: Final answer
    x = 8,678.12

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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.