Home / 11,098.61-15,319.37-6,386.21

Finding the Fourth Proportional to 11,098.61, 15,319.37 and 6,386.21

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Solution

The fourth proportional to 11,098.61, 15,319.37 and 6,386.21 is: 8,814.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,098.61 : 15,319.37 = 6,386.21 : x
  2. Step 2: Convert to fraction form
    11,098.61/15,319.37 = 6,386.21/x
  3. Step 3: Cross multiply
    11,098.61x = 15,319.37 × 6,386.21
  4. Step 4: Simplify right side
    11,098.61x = 97,832,681.96
  5. Step 5: Solve for x
    x = 97,832,681.96/11,098.61
  6. Step 6: Final answer
    x = 8,814.86

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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.