Home / 10,955.52-15,117.76-6,238.88

Finding the Fourth Proportional to 10,955.52, 15,117.76 and 6,238.88

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Solution

The fourth proportional to 10,955.52, 15,117.76 and 6,238.88 is: 8,609.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.52 : 15,117.76 = 6,238.88 : x
  2. Step 2: Convert to fraction form
    10,955.52/15,117.76 = 6,238.88/x
  3. Step 3: Cross multiply
    10,955.52x = 15,117.76 × 6,238.88
  4. Step 4: Simplify right side
    10,955.52x = 94,317,890.51
  5. Step 5: Solve for x
    x = 94,317,890.51/10,955.52
  6. Step 6: Final answer
    x = 8,609.17

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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.