Home / 18,275.04-25,219.76-10,721.50

Finding the Fourth Proportional to 18,275.04, 25,219.76 and 10,721.50

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Solution

The fourth proportional to 18,275.04, 25,219.76 and 10,721.50 is: 14,795.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.04 : 25,219.76 = 10,721.50 : x
  2. Step 2: Convert to fraction form
    18,275.04/25,219.76 = 10,721.50/x
  3. Step 3: Cross multiply
    18,275.04x = 25,219.76 × 10,721.50
  4. Step 4: Simplify right side
    18,275.04x = 270,393,580.39
  5. Step 5: Solve for x
    x = 270,393,580.39/18,275.04
  6. Step 6: Final answer
    x = 14,795.79

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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.