Home / 11,178.60-15,425.70-6,143.18

Finding the Fourth Proportional to 11,178.60, 15,425.70 and 6,143.18

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Solution

The fourth proportional to 11,178.60, 15,425.70 and 6,143.18 is: 8,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.60 : 15,425.70 = 6,143.18 : x
  2. Step 2: Convert to fraction form
    11,178.60/15,425.70 = 6,143.18/x
  3. Step 3: Cross multiply
    11,178.60x = 15,425.70 × 6,143.18
  4. Step 4: Simplify right side
    11,178.60x = 94,762,774.60
  5. Step 5: Solve for x
    x = 94,762,774.60/11,178.60
  6. Step 6: Final answer
    x = 8,477.16

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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.