Home / 9,869.19-13,617.77-5,890.07

Finding the Fourth Proportional to 9,869.19, 13,617.77 and 5,890.07

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Solution

The fourth proportional to 9,869.19, 13,617.77 and 5,890.07 is: 8,127.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.19 : 13,617.77 = 5,890.07 : x
  2. Step 2: Convert to fraction form
    9,869.19/13,617.77 = 5,890.07/x
  3. Step 3: Cross multiply
    9,869.19x = 13,617.77 × 5,890.07
  4. Step 4: Simplify right side
    9,869.19x = 80,209,521.00
  5. Step 5: Solve for x
    x = 80,209,521.00/9,869.19
  6. Step 6: Final answer
    x = 8,127.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.