Home / 10,470.78-14,443.65-6,276.60

Finding the Fourth Proportional to 10,470.78, 14,443.65 and 6,276.60

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Solution

The fourth proportional to 10,470.78, 14,443.65 and 6,276.60 is: 8,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.78 : 14,443.65 = 6,276.60 : x
  2. Step 2: Convert to fraction form
    10,470.78/14,443.65 = 6,276.60/x
  3. Step 3: Cross multiply
    10,470.78x = 14,443.65 × 6,276.60
  4. Step 4: Simplify right side
    10,470.78x = 90,657,013.59
  5. Step 5: Solve for x
    x = 90,657,013.59/10,470.78
  6. Step 6: Final answer
    x = 8,658.10

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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.