Home / 8,528.59-11,768.65-6,291.71

Finding the Fourth Proportional to 8,528.59, 11,768.65 and 6,291.71

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Solution

The fourth proportional to 8,528.59, 11,768.65 and 6,291.71 is: 8,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.59 : 11,768.65 = 6,291.71 : x
  2. Step 2: Convert to fraction form
    8,528.59/11,768.65 = 6,291.71/x
  3. Step 3: Cross multiply
    8,528.59x = 11,768.65 × 6,291.71
  4. Step 4: Simplify right side
    8,528.59x = 74,044,932.89
  5. Step 5: Solve for x
    x = 74,044,932.89/8,528.59
  6. Step 6: Final answer
    x = 8,681.97

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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.