Home / 13,009.55-19,495.65-6,428.05

Finding the Fourth Proportional to 13,009.55, 19,495.65 and 6,428.05

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Solution

The fourth proportional to 13,009.55, 19,495.65 and 6,428.05 is: 9,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.55 : 19,495.65 = 6,428.05 : x
  2. Step 2: Convert to fraction form
    13,009.55/19,495.65 = 6,428.05/x
  3. Step 3: Cross multiply
    13,009.55x = 19,495.65 × 6,428.05
  4. Step 4: Simplify right side
    13,009.55x = 125,318,964.24
  5. Step 5: Solve for x
    x = 125,318,964.24/13,009.55
  6. Step 6: Final answer
    x = 9,632.84

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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.