Home / 9,909.84-13,675.74-5,434.02

Finding the Fourth Proportional to 9,909.84, 13,675.74 and 5,434.02

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Solution

The fourth proportional to 9,909.84, 13,675.74 and 5,434.02 is: 7,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,909.84 : 13,675.74 = 5,434.02 : x
  2. Step 2: Convert to fraction form
    9,909.84/13,675.74 = 5,434.02/x
  3. Step 3: Cross multiply
    9,909.84x = 13,675.74 × 5,434.02
  4. Step 4: Simplify right side
    9,909.84x = 74,314,244.67
  5. Step 5: Solve for x
    x = 74,314,244.67/9,909.84
  6. Step 6: Final answer
    x = 7,499.04

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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.