Home / 12,237.12-16,887.36-6,931.80

Finding the Fourth Proportional to 12,237.12, 16,887.36 and 6,931.80

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Solution

The fourth proportional to 12,237.12, 16,887.36 and 6,931.80 is: 9,565.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.12 : 16,887.36 = 6,931.80 : x
  2. Step 2: Convert to fraction form
    12,237.12/16,887.36 = 6,931.80/x
  3. Step 3: Cross multiply
    12,237.12x = 16,887.36 × 6,931.80
  4. Step 4: Simplify right side
    12,237.12x = 117,059,802.05
  5. Step 5: Solve for x
    x = 117,059,802.05/12,237.12
  6. Step 6: Final answer
    x = 9,565.96

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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.