Home / 15,723.10-21,697.36-9,349.68

Finding the Fourth Proportional to 15,723.10, 21,697.36 and 9,349.68

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Solution

The fourth proportional to 15,723.10, 21,697.36 and 9,349.68 is: 12,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723.10 : 21,697.36 = 9,349.68 : x
  2. Step 2: Convert to fraction form
    15,723.10/21,697.36 = 9,349.68/x
  3. Step 3: Cross multiply
    15,723.10x = 21,697.36 × 9,349.68
  4. Step 4: Simplify right side
    15,723.10x = 202,863,372.84
  5. Step 5: Solve for x
    x = 202,863,372.84/15,723.10
  6. Step 6: Final answer
    x = 12,902.25

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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.