Home / 13,260.65-19,887.89-5,861.08

Finding the Fourth Proportional to 13,260.65, 19,887.89 and 5,861.08

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Solution

The fourth proportional to 13,260.65, 19,887.89 and 5,861.08 is: 8,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.65 : 19,887.89 = 5,861.08 : x
  2. Step 2: Convert to fraction form
    13,260.65/19,887.89 = 5,861.08/x
  3. Step 3: Cross multiply
    13,260.65x = 19,887.89 × 5,861.08
  4. Step 4: Simplify right side
    13,260.65x = 116,564,385.58
  5. Step 5: Solve for x
    x = 116,564,385.58/13,260.65
  6. Step 6: Final answer
    x = 8,790.25

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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.