Home / 14,581.24-21,870.78-8,724.76

Finding the Fourth Proportional to 14,581.24, 21,870.78 and 8,724.76

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Solution

The fourth proportional to 14,581.24, 21,870.78 and 8,724.76 is: 13,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,581.24 : 21,870.78 = 8,724.76 : x
  2. Step 2: Convert to fraction form
    14,581.24/21,870.78 = 8,724.76/x
  3. Step 3: Cross multiply
    14,581.24x = 21,870.78 × 8,724.76
  4. Step 4: Simplify right side
    14,581.24x = 190,817,306.51
  5. Step 5: Solve for x
    x = 190,817,306.51/14,581.24
  6. Step 6: Final answer
    x = 13,086.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.