Home / 18,886.42-28,316.84-10,572.17

Finding the Fourth Proportional to 18,886.42, 28,316.84 and 10,572.17

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Solution

The fourth proportional to 18,886.42, 28,316.84 and 10,572.17 is: 15,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.42 : 28,316.84 = 10,572.17 : x
  2. Step 2: Convert to fraction form
    18,886.42/28,316.84 = 10,572.17/x
  3. Step 3: Cross multiply
    18,886.42x = 28,316.84 × 10,572.17
  4. Step 4: Simplify right side
    18,886.42x = 299,370,472.77
  5. Step 5: Solve for x
    x = 299,370,472.77/18,886.42
  6. Step 6: Final answer
    x = 15,851.10

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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.