Home / 10,895.76-15,033.85-7,124.47

Finding the Fourth Proportional to 10,895.76, 15,033.85 and 7,124.47

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Solution

The fourth proportional to 10,895.76, 15,033.85 and 7,124.47 is: 9,830.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,895.76 : 15,033.85 = 7,124.47 : x
  2. Step 2: Convert to fraction form
    10,895.76/15,033.85 = 7,124.47/x
  3. Step 3: Cross multiply
    10,895.76x = 15,033.85 × 7,124.47
  4. Step 4: Simplify right side
    10,895.76x = 107,108,157.91
  5. Step 5: Solve for x
    x = 107,108,157.91/10,895.76
  6. Step 6: Final answer
    x = 9,830.26

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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.