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Finding the Fourth Proportional to 9,878.99, 14,818.77 and 4,329.47

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Solution

The fourth proportional to 9,878.99, 14,818.77 and 4,329.47 is: 6,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,878.99 : 14,818.77 = 4,329.47 : x
  2. Step 2: Convert to fraction form
    9,878.99/14,818.77 = 4,329.47/x
  3. Step 3: Cross multiply
    9,878.99x = 14,818.77 × 4,329.47
  4. Step 4: Simplify right side
    9,878.99x = 64,157,420.15
  5. Step 5: Solve for x
    x = 64,157,420.15/9,878.99
  6. Step 6: Final answer
    x = 6,494.33

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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.