Home / 15,476.50-21,275.43-13,315.14

Finding the Fourth Proportional to 15,476.50, 21,275.43 and 13,315.14

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Solution

The fourth proportional to 15,476.50, 21,275.43 and 13,315.14 is: 18,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.50 : 21,275.43 = 13,315.14 : x
  2. Step 2: Convert to fraction form
    15,476.50/21,275.43 = 13,315.14/x
  3. Step 3: Cross multiply
    15,476.50x = 21,275.43 × 13,315.14
  4. Step 4: Simplify right side
    15,476.50x = 283,285,329.01
  5. Step 5: Solve for x
    x = 283,285,329.01/15,476.50
  6. Step 6: Final answer
    x = 18,304.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.