Home / 13,191.77-19,758.90-6,606.47

Finding the Fourth Proportional to 13,191.77, 19,758.90 and 6,606.47

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Solution

The fourth proportional to 13,191.77, 19,758.90 and 6,606.47 is: 9,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.77 : 19,758.90 = 6,606.47 : x
  2. Step 2: Convert to fraction form
    13,191.77/19,758.90 = 6,606.47/x
  3. Step 3: Cross multiply
    13,191.77x = 19,758.90 × 6,606.47
  4. Step 4: Simplify right side
    13,191.77x = 130,536,580.08
  5. Step 5: Solve for x
    x = 130,536,580.08/13,191.77
  6. Step 6: Final answer
    x = 9,895.30

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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.