Home / 13,871.68-19,152.06-8,574.28

Finding the Fourth Proportional to 13,871.68, 19,152.06 and 8,574.28

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Solution

The fourth proportional to 13,871.68, 19,152.06 and 8,574.28 is: 11,838.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.68 : 19,152.06 = 8,574.28 : x
  2. Step 2: Convert to fraction form
    13,871.68/19,152.06 = 8,574.28/x
  3. Step 3: Cross multiply
    13,871.68x = 19,152.06 × 8,574.28
  4. Step 4: Simplify right side
    13,871.68x = 164,215,125.02
  5. Step 5: Solve for x
    x = 164,215,125.02/13,871.68
  6. Step 6: Final answer
    x = 11,838.16

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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.