Home / 9,176.86-12,664.20-4,985.10

Finding the Fourth Proportional to 9,176.86, 12,664.20 and 4,985.10

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Solution

The fourth proportional to 9,176.86, 12,664.20 and 4,985.10 is: 6,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.86 : 12,664.20 = 4,985.10 : x
  2. Step 2: Convert to fraction form
    9,176.86/12,664.20 = 4,985.10/x
  3. Step 3: Cross multiply
    9,176.86x = 12,664.20 × 4,985.10
  4. Step 4: Simplify right side
    9,176.86x = 63,132,303.42
  5. Step 5: Solve for x
    x = 63,132,303.42/9,176.86
  6. Step 6: Final answer
    x = 6,879.51

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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.