Home / 9,019.71-13,521.06-3,172.59

Finding the Fourth Proportional to 9,019.71, 13,521.06 and 3,172.59

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Solution

The fourth proportional to 9,019.71, 13,521.06 and 3,172.59 is: 4,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,019.71 : 13,521.06 = 3,172.59 : x
  2. Step 2: Convert to fraction form
    9,019.71/13,521.06 = 3,172.59/x
  3. Step 3: Cross multiply
    9,019.71x = 13,521.06 × 3,172.59
  4. Step 4: Simplify right side
    9,019.71x = 42,896,779.75
  5. Step 5: Solve for x
    x = 42,896,779.75/9,019.71
  6. Step 6: Final answer
    x = 4,755.89

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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.