Home / 13,801.28-19,045.76-7,513.65

Finding the Fourth Proportional to 13,801.28, 19,045.76 and 7,513.65

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Solution

The fourth proportional to 13,801.28, 19,045.76 and 7,513.65 is: 10,368.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.28 : 19,045.76 = 7,513.65 : x
  2. Step 2: Convert to fraction form
    13,801.28/19,045.76 = 7,513.65/x
  3. Step 3: Cross multiply
    13,801.28x = 19,045.76 × 7,513.65
  4. Step 4: Simplify right side
    13,801.28x = 143,103,186.53
  5. Step 5: Solve for x
    x = 143,103,186.53/13,801.28
  6. Step 6: Final answer
    x = 10,368.84

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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.