Home / 8,929.82-12,315.30-6,276.26

Finding the Fourth Proportional to 8,929.82, 12,315.30 and 6,276.26

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Solution

The fourth proportional to 8,929.82, 12,315.30 and 6,276.26 is: 8,655.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.82 : 12,315.30 = 6,276.26 : x
  2. Step 2: Convert to fraction form
    8,929.82/12,315.30 = 6,276.26/x
  3. Step 3: Cross multiply
    8,929.82x = 12,315.30 × 6,276.26
  4. Step 4: Simplify right side
    8,929.82x = 77,294,024.78
  5. Step 5: Solve for x
    x = 77,294,024.78/8,929.82
  6. Step 6: Final answer
    x = 8,655.72

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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.