Home / 10,780.42-14,870.90-6,472.41

Finding the Fourth Proportional to 10,780.42, 14,870.90 and 6,472.41

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Solution

The fourth proportional to 10,780.42, 14,870.90 and 6,472.41 is: 8,928.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.42 : 14,870.90 = 6,472.41 : x
  2. Step 2: Convert to fraction form
    10,780.42/14,870.90 = 6,472.41/x
  3. Step 3: Cross multiply
    10,780.42x = 14,870.90 × 6,472.41
  4. Step 4: Simplify right side
    10,780.42x = 96,250,504.08
  5. Step 5: Solve for x
    x = 96,250,504.08/10,780.42
  6. Step 6: Final answer
    x = 8,928.27

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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.