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Finding the Fourth Proportional to 11,312.37, 16,987.86 and 7,370.37

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Solution

The fourth proportional to 11,312.37, 16,987.86 and 7,370.37 is: 11,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.37 : 16,987.86 = 7,370.37 : x
  2. Step 2: Convert to fraction form
    11,312.37/16,987.86 = 7,370.37/x
  3. Step 3: Cross multiply
    11,312.37x = 16,987.86 × 7,370.37
  4. Step 4: Simplify right side
    11,312.37x = 125,206,813.71
  5. Step 5: Solve for x
    x = 125,206,813.71/11,312.37
  6. Step 6: Final answer
    x = 11,068.13

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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.