Home / 15,274.62-21,077.64-8,559.36

Finding the Fourth Proportional to 15,274.62, 21,077.64 and 8,559.36

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Solution

The fourth proportional to 15,274.62, 21,077.64 and 8,559.36 is: 11,811.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,274.62 : 21,077.64 = 8,559.36 : x
  2. Step 2: Convert to fraction form
    15,274.62/21,077.64 = 8,559.36/x
  3. Step 3: Cross multiply
    15,274.62x = 21,077.64 × 8,559.36
  4. Step 4: Simplify right side
    15,274.62x = 180,411,108.71
  5. Step 5: Solve for x
    x = 180,411,108.71/15,274.62
  6. Step 6: Final answer
    x = 11,811.17

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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.