Home / 13,862.39-19,130.10-7,574.77

Finding the Fourth Proportional to 13,862.39, 19,130.10 and 7,574.77

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Solution

The fourth proportional to 13,862.39, 19,130.10 and 7,574.77 is: 10,453.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.39 : 19,130.10 = 7,574.77 : x
  2. Step 2: Convert to fraction form
    13,862.39/19,130.10 = 7,574.77/x
  3. Step 3: Cross multiply
    13,862.39x = 19,130.10 × 7,574.77
  4. Step 4: Simplify right side
    13,862.39x = 144,906,016.78
  5. Step 5: Solve for x
    x = 144,906,016.78/13,862.39
  6. Step 6: Final answer
    x = 10,453.18

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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.