Home / 13,130.08-19,685.09-6,560.87

Finding the Fourth Proportional to 13,130.08, 19,685.09 and 6,560.87

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Solution

The fourth proportional to 13,130.08, 19,685.09 and 6,560.87 is: 9,836.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.08 : 19,685.09 = 6,560.87 : x
  2. Step 2: Convert to fraction form
    13,130.08/19,685.09 = 6,560.87/x
  3. Step 3: Cross multiply
    13,130.08x = 19,685.09 × 6,560.87
  4. Step 4: Simplify right side
    13,130.08x = 129,151,316.43
  5. Step 5: Solve for x
    x = 129,151,316.43/13,130.08
  6. Step 6: Final answer
    x = 9,836.29

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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.