Home / 10,970.76-15,140.32-6,255.48

Finding the Fourth Proportional to 10,970.76, 15,140.32 and 6,255.48

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Solution

The fourth proportional to 10,970.76, 15,140.32 and 6,255.48 is: 8,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.76 : 15,140.32 = 6,255.48 : x
  2. Step 2: Convert to fraction form
    10,970.76/15,140.32 = 6,255.48/x
  3. Step 3: Cross multiply
    10,970.76x = 15,140.32 × 6,255.48
  4. Step 4: Simplify right side
    10,970.76x = 94,709,968.95
  5. Step 5: Solve for x
    x = 94,709,968.95/10,970.76
  6. Step 6: Final answer
    x = 8,632.95

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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.