Home / 10,787.42-14,886.70-6,310.31

Finding the Fourth Proportional to 10,787.42, 14,886.70 and 6,310.31

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Solution

The fourth proportional to 10,787.42, 14,886.70 and 6,310.31 is: 8,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.42 : 14,886.70 = 6,310.31 : x
  2. Step 2: Convert to fraction form
    10,787.42/14,886.70 = 6,310.31/x
  3. Step 3: Cross multiply
    10,787.42x = 14,886.70 × 6,310.31
  4. Step 4: Simplify right side
    10,787.42x = 93,939,601.67
  5. Step 5: Solve for x
    x = 93,939,601.67/10,787.42
  6. Step 6: Final answer
    x = 8,708.25

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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.