Home / 9,999.32-14,999.39-3,426.17

Finding the Fourth Proportional to 9,999.32, 14,999.39 and 3,426.17

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Solution

The fourth proportional to 9,999.32, 14,999.39 and 3,426.17 is: 5,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.32 : 14,999.39 = 3,426.17 : x
  2. Step 2: Convert to fraction form
    9,999.32/14,999.39 = 3,426.17/x
  3. Step 3: Cross multiply
    9,999.32x = 14,999.39 × 3,426.17
  4. Step 4: Simplify right side
    9,999.32x = 51,390,506.10
  5. Step 5: Solve for x
    x = 51,390,506.10/9,999.32
  6. Step 6: Final answer
    x = 5,139.40

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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.