Home / 8,328.18-12,498.36-6,142.80

Finding the Fourth Proportional to 8,328.18, 12,498.36 and 6,142.80

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Solution

The fourth proportional to 8,328.18, 12,498.36 and 6,142.80 is: 9,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.18 : 12,498.36 = 6,142.80 : x
  2. Step 2: Convert to fraction form
    8,328.18/12,498.36 = 6,142.80/x
  3. Step 3: Cross multiply
    8,328.18x = 12,498.36 × 6,142.80
  4. Step 4: Simplify right side
    8,328.18x = 76,774,925.81
  5. Step 5: Solve for x
    x = 76,774,925.81/8,328.18
  6. Step 6: Final answer
    x = 9,218.69

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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.