Home / 12,188.86-16,818.92-6,810.62

Finding the Fourth Proportional to 12,188.86, 16,818.92 and 6,810.62

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Solution

The fourth proportional to 12,188.86, 16,818.92 and 6,810.62 is: 9,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.86 : 16,818.92 = 6,810.62 : x
  2. Step 2: Convert to fraction form
    12,188.86/16,818.92 = 6,810.62/x
  3. Step 3: Cross multiply
    12,188.86x = 16,818.92 × 6,810.62
  4. Step 4: Simplify right side
    12,188.86x = 114,547,180.32
  5. Step 5: Solve for x
    x = 114,547,180.32/12,188.86
  6. Step 6: Final answer
    x = 9,397.70

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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.