Home / 13,436.40-20,134.80-9,746.40

Finding the Fourth Proportional to 13,436.40, 20,134.80 and 9,746.40

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Solution

The fourth proportional to 13,436.40, 20,134.80 and 9,746.40 is: 14,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.40 : 20,134.80 = 9,746.40 : x
  2. Step 2: Convert to fraction form
    13,436.40/20,134.80 = 9,746.40/x
  3. Step 3: Cross multiply
    13,436.40x = 20,134.80 × 9,746.40
  4. Step 4: Simplify right side
    13,436.40x = 196,241,814.72
  5. Step 5: Solve for x
    x = 196,241,814.72/13,436.40
  6. Step 6: Final answer
    x = 14,605.24

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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.