Home / 14,572.79-20,118.81-9,799.66

Finding the Fourth Proportional to 14,572.79, 20,118.81 and 9,799.66

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Solution

The fourth proportional to 14,572.79, 20,118.81 and 9,799.66 is: 13,529.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572.79 : 20,118.81 = 9,799.66 : x
  2. Step 2: Convert to fraction form
    14,572.79/20,118.81 = 9,799.66/x
  3. Step 3: Cross multiply
    14,572.79x = 20,118.81 × 9,799.66
  4. Step 4: Simplify right side
    14,572.79x = 197,157,559.50
  5. Step 5: Solve for x
    x = 197,157,559.50/14,572.79
  6. Step 6: Final answer
    x = 13,529.16

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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.