Home / 15,302.46-21,122.66-9,646.74

Finding the Fourth Proportional to 15,302.46, 21,122.66 and 9,646.74

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Solution

The fourth proportional to 15,302.46, 21,122.66 and 9,646.74 is: 13,315.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.46 : 21,122.66 = 9,646.74 : x
  2. Step 2: Convert to fraction form
    15,302.46/21,122.66 = 9,646.74/x
  3. Step 3: Cross multiply
    15,302.46x = 21,122.66 × 9,646.74
  4. Step 4: Simplify right side
    15,302.46x = 203,764,833.25
  5. Step 5: Solve for x
    x = 203,764,833.25/15,302.46
  6. Step 6: Final answer
    x = 13,315.82

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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.