Home / 9,435.10-13,019.80-5,186.06

Finding the Fourth Proportional to 9,435.10, 13,019.80 and 5,186.06

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Solution

The fourth proportional to 9,435.10, 13,019.80 and 5,186.06 is: 7,156.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,435.10 : 13,019.80 = 5,186.06 : x
  2. Step 2: Convert to fraction form
    9,435.10/13,019.80 = 5,186.06/x
  3. Step 3: Cross multiply
    9,435.10x = 13,019.80 × 5,186.06
  4. Step 4: Simplify right side
    9,435.10x = 67,521,463.99
  5. Step 5: Solve for x
    x = 67,521,463.99/9,435.10
  6. Step 6: Final answer
    x = 7,156.41

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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.