Home / 15,362.48-21,210.41-9,628.55

Finding the Fourth Proportional to 15,362.48, 21,210.41 and 9,628.55

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Solution

The fourth proportional to 15,362.48, 21,210.41 and 9,628.55 is: 13,293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.48 : 21,210.41 = 9,628.55 : x
  2. Step 2: Convert to fraction form
    15,362.48/21,210.41 = 9,628.55/x
  3. Step 3: Cross multiply
    15,362.48x = 21,210.41 × 9,628.55
  4. Step 4: Simplify right side
    15,362.48x = 204,225,440.18
  5. Step 5: Solve for x
    x = 204,225,440.18/15,362.48
  6. Step 6: Final answer
    x = 13,293.79

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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.