Home / 13,330.04-19,999.38-6,405.08

Finding the Fourth Proportional to 13,330.04, 19,999.38 and 6,405.08

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Solution

The fourth proportional to 13,330.04, 19,999.38 and 6,405.08 is: 9,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.04 : 19,999.38 = 6,405.08 : x
  2. Step 2: Convert to fraction form
    13,330.04/19,999.38 = 6,405.08/x
  3. Step 3: Cross multiply
    13,330.04x = 19,999.38 × 6,405.08
  4. Step 4: Simplify right side
    13,330.04x = 128,097,628.85
  5. Step 5: Solve for x
    x = 128,097,628.85/13,330.04
  6. Step 6: Final answer
    x = 9,609.70

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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.