Home / 13,130.90-19,679.93-6,558.92

Finding the Fourth Proportional to 13,130.90, 19,679.93 and 6,558.92

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Solution

The fourth proportional to 13,130.90, 19,679.93 and 6,558.92 is: 9,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.90 : 19,679.93 = 6,558.92 : x
  2. Step 2: Convert to fraction form
    13,130.90/19,679.93 = 6,558.92/x
  3. Step 3: Cross multiply
    13,130.90x = 19,679.93 × 6,558.92
  4. Step 4: Simplify right side
    13,130.90x = 129,079,053.68
  5. Step 5: Solve for x
    x = 129,079,053.68/13,130.90
  6. Step 6: Final answer
    x = 9,830.18

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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.