Home / 10,976.84-15,148.16-6,261.40

Finding the Fourth Proportional to 10,976.84, 15,148.16 and 6,261.40

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Solution

The fourth proportional to 10,976.84, 15,148.16 and 6,261.40 is: 8,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,976.84 : 15,148.16 = 6,261.40 : x
  2. Step 2: Convert to fraction form
    10,976.84/15,148.16 = 6,261.40/x
  3. Step 3: Cross multiply
    10,976.84x = 15,148.16 × 6,261.40
  4. Step 4: Simplify right side
    10,976.84x = 94,848,689.02
  5. Step 5: Solve for x
    x = 94,848,689.02/10,976.84
  6. Step 6: Final answer
    x = 8,640.80

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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.