Home / 15,036.16-20,750.16-8,322.34

Finding the Fourth Proportional to 15,036.16, 20,750.16 and 8,322.34

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Solution

The fourth proportional to 15,036.16, 20,750.16 and 8,322.34 is: 11,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036.16 : 20,750.16 = 8,322.34 : x
  2. Step 2: Convert to fraction form
    15,036.16/20,750.16 = 8,322.34/x
  3. Step 3: Cross multiply
    15,036.16x = 20,750.16 × 8,322.34
  4. Step 4: Simplify right side
    15,036.16x = 172,689,886.57
  5. Step 5: Solve for x
    x = 172,689,886.57/15,036.16
  6. Step 6: Final answer
    x = 11,484.97

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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.