Home / 15,362.46-21,155.58-13,344.95

Finding the Fourth Proportional to 15,362.46, 21,155.58 and 13,344.95

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Solution

The fourth proportional to 15,362.46, 21,155.58 and 13,344.95 is: 18,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.46 : 21,155.58 = 13,344.95 : x
  2. Step 2: Convert to fraction form
    15,362.46/21,155.58 = 13,344.95/x
  3. Step 3: Cross multiply
    15,362.46x = 21,155.58 × 13,344.95
  4. Step 4: Simplify right side
    15,362.46x = 282,320,210.21
  5. Step 5: Solve for x
    x = 282,320,210.21/15,362.46
  6. Step 6: Final answer
    x = 18,377.28

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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.