Home / 14,415.47-21,615.52-7,392.64

Finding the Fourth Proportional to 14,415.47, 21,615.52 and 7,392.64

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Solution

The fourth proportional to 14,415.47, 21,615.52 and 7,392.64 is: 11,085.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.47 : 21,615.52 = 7,392.64 : x
  2. Step 2: Convert to fraction form
    14,415.47/21,615.52 = 7,392.64/x
  3. Step 3: Cross multiply
    14,415.47x = 21,615.52 × 7,392.64
  4. Step 4: Simplify right side
    14,415.47x = 159,795,685.25
  5. Step 5: Solve for x
    x = 159,795,685.25/14,415.47
  6. Step 6: Final answer
    x = 11,085.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.