Home / 10,188.40-14,060.64-6,661.12

Finding the Fourth Proportional to 10,188.40, 14,060.64 and 6,661.12

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Solution

The fourth proportional to 10,188.40, 14,060.64 and 6,661.12 is: 9,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.40 : 14,060.64 = 6,661.12 : x
  2. Step 2: Convert to fraction form
    10,188.40/14,060.64 = 6,661.12/x
  3. Step 3: Cross multiply
    10,188.40x = 14,060.64 × 6,661.12
  4. Step 4: Simplify right side
    10,188.40x = 93,659,610.32
  5. Step 5: Solve for x
    x = 93,659,610.32/10,188.40
  6. Step 6: Final answer
    x = 9,192.77

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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.