Home / 13,008.99-19,513.61-3,148.28

Finding the Fourth Proportional to 13,008.99, 19,513.61 and 3,148.28

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Solution

The fourth proportional to 13,008.99, 19,513.61 and 3,148.28 is: 4,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.99 : 19,513.61 = 3,148.28 : x
  2. Step 2: Convert to fraction form
    13,008.99/19,513.61 = 3,148.28/x
  3. Step 3: Cross multiply
    13,008.99x = 19,513.61 × 3,148.28
  4. Step 4: Simplify right side
    13,008.99x = 61,434,341.13
  5. Step 5: Solve for x
    x = 61,434,341.13/13,008.99
  6. Step 6: Final answer
    x = 4,722.45

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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.