Home / 10,962.80-16,420.72-4,714.64

Finding the Fourth Proportional to 10,962.80, 16,420.72 and 4,714.64

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Solution

The fourth proportional to 10,962.80, 16,420.72 and 4,714.64 is: 7,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,962.80 : 16,420.72 = 4,714.64 : x
  2. Step 2: Convert to fraction form
    10,962.80/16,420.72 = 4,714.64/x
  3. Step 3: Cross multiply
    10,962.80x = 16,420.72 × 4,714.64
  4. Step 4: Simplify right side
    10,962.80x = 77,417,783.34
  5. Step 5: Solve for x
    x = 77,417,783.34/10,962.80
  6. Step 6: Final answer
    x = 7,061.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.