Home / 11,515.84-15,891.76-6,547.84

Finding the Fourth Proportional to 11,515.84, 15,891.76 and 6,547.84

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Solution

The fourth proportional to 11,515.84, 15,891.76 and 6,547.84 is: 9,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.84 : 15,891.76 = 6,547.84 : x
  2. Step 2: Convert to fraction form
    11,515.84/15,891.76 = 6,547.84/x
  3. Step 3: Cross multiply
    11,515.84x = 15,891.76 × 6,547.84
  4. Step 4: Simplify right side
    11,515.84x = 104,056,701.80
  5. Step 5: Solve for x
    x = 104,056,701.80/11,515.84
  6. Step 6: Final answer
    x = 9,035.96

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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.