Home / 10,977.04-15,148.34-6,261.20

Finding the Fourth Proportional to 10,977.04, 15,148.34 and 6,261.20

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Solution

The fourth proportional to 10,977.04, 15,148.34 and 6,261.20 is: 8,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.04 : 15,148.34 = 6,261.20 : x
  2. Step 2: Convert to fraction form
    10,977.04/15,148.34 = 6,261.20/x
  3. Step 3: Cross multiply
    10,977.04x = 15,148.34 × 6,261.20
  4. Step 4: Simplify right side
    10,977.04x = 94,846,786.41
  5. Step 5: Solve for x
    x = 94,846,786.41/10,977.04
  6. Step 6: Final answer
    x = 8,640.47

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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.