Home / 11,411.89-15,750.25-6,875.08

Finding the Fourth Proportional to 11,411.89, 15,750.25 and 6,875.08

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Solution

The fourth proportional to 11,411.89, 15,750.25 and 6,875.08 is: 9,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.89 : 15,750.25 = 6,875.08 : x
  2. Step 2: Convert to fraction form
    11,411.89/15,750.25 = 6,875.08/x
  3. Step 3: Cross multiply
    11,411.89x = 15,750.25 × 6,875.08
  4. Step 4: Simplify right side
    11,411.89x = 108,284,172.21
  5. Step 5: Solve for x
    x = 108,284,172.21/11,411.89
  6. Step 6: Final answer
    x = 9,488.72

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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.