Home / 10,955.79-15,119.53-6,177.74

Finding the Fourth Proportional to 10,955.79, 15,119.53 and 6,177.74

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Solution

The fourth proportional to 10,955.79, 15,119.53 and 6,177.74 is: 8,525.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.79 : 15,119.53 = 6,177.74 : x
  2. Step 2: Convert to fraction form
    10,955.79/15,119.53 = 6,177.74/x
  3. Step 3: Cross multiply
    10,955.79x = 15,119.53 × 6,177.74
  4. Step 4: Simplify right side
    10,955.79x = 93,404,434.22
  5. Step 5: Solve for x
    x = 93,404,434.22/10,955.79
  6. Step 6: Final answer
    x = 8,525.58

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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.