Home / 15,416.68-21,272.75-9,040.86

Finding the Fourth Proportional to 15,416.68, 21,272.75 and 9,040.86

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Solution

The fourth proportional to 15,416.68, 21,272.75 and 9,040.86 is: 12,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.68 : 21,272.75 = 9,040.86 : x
  2. Step 2: Convert to fraction form
    15,416.68/21,272.75 = 9,040.86/x
  3. Step 3: Cross multiply
    15,416.68x = 21,272.75 × 9,040.86
  4. Step 4: Simplify right side
    15,416.68x = 192,323,909.36
  5. Step 5: Solve for x
    x = 192,323,909.36/15,416.68
  6. Step 6: Final answer
    x = 12,475.05

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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.