Home / 10,955.55-16,435.26-7,830.18

Finding the Fourth Proportional to 10,955.55, 16,435.26 and 7,830.18

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Solution

The fourth proportional to 10,955.55, 16,435.26 and 7,830.18 is: 11,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.55 : 16,435.26 = 7,830.18 : x
  2. Step 2: Convert to fraction form
    10,955.55/16,435.26 = 7,830.18/x
  3. Step 3: Cross multiply
    10,955.55x = 16,435.26 × 7,830.18
  4. Step 4: Simplify right side
    10,955.55x = 128,691,044.15
  5. Step 5: Solve for x
    x = 128,691,044.15/10,955.55
  6. Step 6: Final answer
    x = 11,746.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.