Home / 11,070.81-15,277.16-6,290.12

Finding the Fourth Proportional to 11,070.81, 15,277.16 and 6,290.12

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Solution

The fourth proportional to 11,070.81, 15,277.16 and 6,290.12 is: 8,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,070.81 : 15,277.16 = 6,290.12 : x
  2. Step 2: Convert to fraction form
    11,070.81/15,277.16 = 6,290.12/x
  3. Step 3: Cross multiply
    11,070.81x = 15,277.16 × 6,290.12
  4. Step 4: Simplify right side
    11,070.81x = 96,095,169.66
  5. Step 5: Solve for x
    x = 96,095,169.66/11,070.81
  6. Step 6: Final answer
    x = 8,680.05

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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.