Home / 14,886.28-20,510.58-9,909.64

Finding the Fourth Proportional to 14,886.28, 20,510.58 and 9,909.64

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Solution

The fourth proportional to 14,886.28, 20,510.58 and 9,909.64 is: 13,653.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,886.28 : 20,510.58 = 9,909.64 : x
  2. Step 2: Convert to fraction form
    14,886.28/20,510.58 = 9,909.64/x
  3. Step 3: Cross multiply
    14,886.28x = 20,510.58 × 9,909.64
  4. Step 4: Simplify right side
    14,886.28x = 203,252,463.99
  5. Step 5: Solve for x
    x = 203,252,463.99/14,886.28
  6. Step 6: Final answer
    x = 13,653.68

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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.