Home / 18,671.16-28,011.06-10,886.52

Finding the Fourth Proportional to 18,671.16, 28,011.06 and 10,886.52

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Solution

The fourth proportional to 18,671.16, 28,011.06 and 10,886.52 is: 16,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671.16 : 28,011.06 = 10,886.52 : x
  2. Step 2: Convert to fraction form
    18,671.16/28,011.06 = 10,886.52/x
  3. Step 3: Cross multiply
    18,671.16x = 28,011.06 × 10,886.52
  4. Step 4: Simplify right side
    18,671.16x = 304,942,964.91
  5. Step 5: Solve for x
    x = 304,942,964.91/18,671.16
  6. Step 6: Final answer
    x = 16,332.30

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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.