Home / 8,632.51-12,915.96-5,337.43

Finding the Fourth Proportional to 8,632.51, 12,915.96 and 5,337.43

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Solution

The fourth proportional to 8,632.51, 12,915.96 and 5,337.43 is: 7,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.51 : 12,915.96 = 5,337.43 : x
  2. Step 2: Convert to fraction form
    8,632.51/12,915.96 = 5,337.43/x
  3. Step 3: Cross multiply
    8,632.51x = 12,915.96 × 5,337.43
  4. Step 4: Simplify right side
    8,632.51x = 68,937,980.08
  5. Step 5: Solve for x
    x = 68,937,980.08/8,632.51
  6. Step 6: Final answer
    x = 7,985.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.