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Finding the Fourth Proportional to 9,485.40, 14,230.98 and 4,291.32

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Solution

The fourth proportional to 9,485.40, 14,230.98 and 4,291.32 is: 6,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,485.40 : 14,230.98 = 4,291.32 : x
  2. Step 2: Convert to fraction form
    9,485.40/14,230.98 = 4,291.32/x
  3. Step 3: Cross multiply
    9,485.40x = 14,230.98 × 4,291.32
  4. Step 4: Simplify right side
    9,485.40x = 61,069,689.09
  5. Step 5: Solve for x
    x = 61,069,689.09/9,485.40
  6. Step 6: Final answer
    x = 6,438.28

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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.