Home / 15,782.11-23,656.73-6,428.59

Finding the Fourth Proportional to 15,782.11, 23,656.73 and 6,428.59

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Solution

The fourth proportional to 15,782.11, 23,656.73 and 6,428.59 is: 9,636.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,782.11 : 23,656.73 = 6,428.59 : x
  2. Step 2: Convert to fraction form
    15,782.11/23,656.73 = 6,428.59/x
  3. Step 3: Cross multiply
    15,782.11x = 23,656.73 × 6,428.59
  4. Step 4: Simplify right side
    15,782.11x = 152,079,326.63
  5. Step 5: Solve for x
    x = 152,079,326.63/15,782.11
  6. Step 6: Final answer
    x = 9,636.19

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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.