Home / 15,605.31-23,403.10-5,214.63

Finding the Fourth Proportional to 15,605.31, 23,403.10 and 5,214.63

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Solution

The fourth proportional to 15,605.31, 23,403.10 and 5,214.63 is: 7,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.31 : 23,403.10 = 5,214.63 : x
  2. Step 2: Convert to fraction form
    15,605.31/23,403.10 = 5,214.63/x
  3. Step 3: Cross multiply
    15,605.31x = 23,403.10 × 5,214.63
  4. Step 4: Simplify right side
    15,605.31x = 122,038,377.30
  5. Step 5: Solve for x
    x = 122,038,377.30/15,605.31
  6. Step 6: Final answer
    x = 7,820.31

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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.