Home / 13,209.59-19,813.40-4,885.71

Finding the Fourth Proportional to 13,209.59, 19,813.40 and 4,885.71

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Solution

The fourth proportional to 13,209.59, 19,813.40 and 4,885.71 is: 7,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.59 : 19,813.40 = 4,885.71 : x
  2. Step 2: Convert to fraction form
    13,209.59/19,813.40 = 4,885.71/x
  3. Step 3: Cross multiply
    13,209.59x = 19,813.40 × 4,885.71
  4. Step 4: Simplify right side
    13,209.59x = 96,802,502.09
  5. Step 5: Solve for x
    x = 96,802,502.09/13,209.59
  6. Step 6: Final answer
    x = 7,328.20

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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.