Home / 10,124.72-13,975.08-6,400.88

Finding the Fourth Proportional to 10,124.72, 13,975.08 and 6,400.88

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Solution

The fourth proportional to 10,124.72, 13,975.08 and 6,400.88 is: 8,835.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,124.72 : 13,975.08 = 6,400.88 : x
  2. Step 2: Convert to fraction form
    10,124.72/13,975.08 = 6,400.88/x
  3. Step 3: Cross multiply
    10,124.72x = 13,975.08 × 6,400.88
  4. Step 4: Simplify right side
    10,124.72x = 89,452,810.07
  5. Step 5: Solve for x
    x = 89,452,810.07/10,124.72
  6. Step 6: Final answer
    x = 8,835.09

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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.