Home / 10,970.19-15,138.81-5,934.42

Finding the Fourth Proportional to 10,970.19, 15,138.81 and 5,934.42

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Solution

The fourth proportional to 10,970.19, 15,138.81 and 5,934.42 is: 8,189.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.19 : 15,138.81 = 5,934.42 : x
  2. Step 2: Convert to fraction form
    10,970.19/15,138.81 = 5,934.42/x
  3. Step 3: Cross multiply
    10,970.19x = 15,138.81 × 5,934.42
  4. Step 4: Simplify right side
    10,970.19x = 89,840,056.84
  5. Step 5: Solve for x
    x = 89,840,056.84/10,970.19
  6. Step 6: Final answer
    x = 8,189.47

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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.