Home / 8,424.16-11,625.36-4,698.40

Finding the Fourth Proportional to 8,424.16, 11,625.36 and 4,698.40

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Solution

The fourth proportional to 8,424.16, 11,625.36 and 4,698.40 is: 6,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.16 : 11,625.36 = 4,698.40 : x
  2. Step 2: Convert to fraction form
    8,424.16/11,625.36 = 4,698.40/x
  3. Step 3: Cross multiply
    8,424.16x = 11,625.36 × 4,698.40
  4. Step 4: Simplify right side
    8,424.16x = 54,620,591.42
  5. Step 5: Solve for x
    x = 54,620,591.42/8,424.16
  6. Step 6: Final answer
    x = 6,483.80

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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.