Home / 15,310.59-21,130.11-9,346.25

Finding the Fourth Proportional to 15,310.59, 21,130.11 and 9,346.25

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Solution

The fourth proportional to 15,310.59, 21,130.11 and 9,346.25 is: 12,898.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.59 : 21,130.11 = 9,346.25 : x
  2. Step 2: Convert to fraction form
    15,310.59/21,130.11 = 9,346.25/x
  3. Step 3: Cross multiply
    15,310.59x = 21,130.11 × 9,346.25
  4. Step 4: Simplify right side
    15,310.59x = 197,487,184.94
  5. Step 5: Solve for x
    x = 197,487,184.94/15,310.59
  6. Step 6: Final answer
    x = 12,898.73

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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.