Home / 11,435.06-15,780.47-6,656.19

Finding the Fourth Proportional to 11,435.06, 15,780.47 and 6,656.19

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Solution

The fourth proportional to 11,435.06, 15,780.47 and 6,656.19 is: 9,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,435.06 : 15,780.47 = 6,656.19 : x
  2. Step 2: Convert to fraction form
    11,435.06/15,780.47 = 6,656.19/x
  3. Step 3: Cross multiply
    11,435.06x = 15,780.47 × 6,656.19
  4. Step 4: Simplify right side
    11,435.06x = 105,037,806.61
  5. Step 5: Solve for x
    x = 105,037,806.61/11,435.06
  6. Step 6: Final answer
    x = 9,185.59

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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.