Home / 10,190.72-14,065.12-6,656.96

Finding the Fourth Proportional to 10,190.72, 14,065.12 and 6,656.96

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Solution

The fourth proportional to 10,190.72, 14,065.12 and 6,656.96 is: 9,187.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.72 : 14,065.12 = 6,656.96 : x
  2. Step 2: Convert to fraction form
    10,190.72/14,065.12 = 6,656.96/x
  3. Step 3: Cross multiply
    10,190.72x = 14,065.12 × 6,656.96
  4. Step 4: Simplify right side
    10,190.72x = 93,630,941.24
  5. Step 5: Solve for x
    x = 93,630,941.24/10,190.72
  6. Step 6: Final answer
    x = 9,187.86

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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.