Home / 14,953.60-20,637.18-8,239.84

Finding the Fourth Proportional to 14,953.60, 20,637.18 and 8,239.84

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Solution

The fourth proportional to 14,953.60, 20,637.18 and 8,239.84 is: 11,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,953.60 : 20,637.18 = 8,239.84 : x
  2. Step 2: Convert to fraction form
    14,953.60/20,637.18 = 8,239.84/x
  3. Step 3: Cross multiply
    14,953.60x = 20,637.18 × 8,239.84
  4. Step 4: Simplify right side
    14,953.60x = 170,047,125.74
  5. Step 5: Solve for x
    x = 170,047,125.74/14,953.60
  6. Step 6: Final answer
    x = 11,371.65

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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.