Home / 7,002.10-9,664.53-4,909.30

Finding the Fourth Proportional to 7,002.10, 9,664.53 and 4,909.30

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Solution

The fourth proportional to 7,002.10, 9,664.53 and 4,909.30 is: 6,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.10 : 9,664.53 = 4,909.30 : x
  2. Step 2: Convert to fraction form
    7,002.10/9,664.53 = 4,909.30/x
  3. Step 3: Cross multiply
    7,002.10x = 9,664.53 × 4,909.30
  4. Step 4: Simplify right side
    7,002.10x = 47,446,077.13
  5. Step 5: Solve for x
    x = 47,446,077.13/7,002.10
  6. Step 6: Final answer
    x = 6,775.98

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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.