Home / 14,008.32-20,856.95-13,812.18

Finding the Fourth Proportional to 14,008.32, 20,856.95 and 13,812.18

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Solution

The fourth proportional to 14,008.32, 20,856.95 and 13,812.18 is: 20,564.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.32 : 20,856.95 = 13,812.18 : x
  2. Step 2: Convert to fraction form
    14,008.32/20,856.95 = 13,812.18/x
  3. Step 3: Cross multiply
    14,008.32x = 20,856.95 × 13,812.18
  4. Step 4: Simplify right side
    14,008.32x = 288,079,947.65
  5. Step 5: Solve for x
    x = 288,079,947.65/14,008.32
  6. Step 6: Final answer
    x = 20,564.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.