Home / 13,864.48-19,133.76-9,145.42

Finding the Fourth Proportional to 13,864.48, 19,133.76 and 9,145.42

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Solution

The fourth proportional to 13,864.48, 19,133.76 and 9,145.42 is: 12,621.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.48 : 19,133.76 = 9,145.42 : x
  2. Step 2: Convert to fraction form
    13,864.48/19,133.76 = 9,145.42/x
  3. Step 3: Cross multiply
    13,864.48x = 19,133.76 × 9,145.42
  4. Step 4: Simplify right side
    13,864.48x = 174,986,271.38
  5. Step 5: Solve for x
    x = 174,986,271.38/13,864.48
  6. Step 6: Final answer
    x = 12,621.19

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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.