Home / 11,312.13-15,611.36-7,336.65

Finding the Fourth Proportional to 11,312.13, 15,611.36 and 7,336.65

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Solution

The fourth proportional to 11,312.13, 15,611.36 and 7,336.65 is: 10,124.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.13 : 15,611.36 = 7,336.65 : x
  2. Step 2: Convert to fraction form
    11,312.13/15,611.36 = 7,336.65/x
  3. Step 3: Cross multiply
    11,312.13x = 15,611.36 × 7,336.65
  4. Step 4: Simplify right side
    11,312.13x = 114,535,047.66
  5. Step 5: Solve for x
    x = 114,535,047.66/11,312.13
  6. Step 6: Final answer
    x = 10,124.98

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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.