Home / 15,457.26-21,330.63-9,169.50

Finding the Fourth Proportional to 15,457.26, 21,330.63 and 9,169.50

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Solution

The fourth proportional to 15,457.26, 21,330.63 and 9,169.50 is: 12,653.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.26 : 21,330.63 = 9,169.50 : x
  2. Step 2: Convert to fraction form
    15,457.26/21,330.63 = 9,169.50/x
  3. Step 3: Cross multiply
    15,457.26x = 21,330.63 × 9,169.50
  4. Step 4: Simplify right side
    15,457.26x = 195,591,211.79
  5. Step 5: Solve for x
    x = 195,591,211.79/15,457.26
  6. Step 6: Final answer
    x = 12,653.68

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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.