Home / 10,899.41-15,037.32-7,124.75

Finding the Fourth Proportional to 10,899.41, 15,037.32 and 7,124.75

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Solution

The fourth proportional to 10,899.41, 15,037.32 and 7,124.75 is: 9,829.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.41 : 15,037.32 = 7,124.75 : x
  2. Step 2: Convert to fraction form
    10,899.41/15,037.32 = 7,124.75/x
  3. Step 3: Cross multiply
    10,899.41x = 15,037.32 × 7,124.75
  4. Step 4: Simplify right side
    10,899.41x = 107,137,070.48
  5. Step 5: Solve for x
    x = 107,137,070.48/10,899.41
  6. Step 6: Final answer
    x = 9,829.63

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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.