Home / 15,448.84-21,320.49-8,734.53

Finding the Fourth Proportional to 15,448.84, 21,320.49 and 8,734.53

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Solution

The fourth proportional to 15,448.84, 21,320.49 and 8,734.53 is: 12,054.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.84 : 21,320.49 = 8,734.53 : x
  2. Step 2: Convert to fraction form
    15,448.84/21,320.49 = 8,734.53/x
  3. Step 3: Cross multiply
    15,448.84x = 21,320.49 × 8,734.53
  4. Step 4: Simplify right side
    15,448.84x = 186,224,572.23
  5. Step 5: Solve for x
    x = 186,224,572.23/15,448.84
  6. Step 6: Final answer
    x = 12,054.27

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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.