Home / 15,030.69-20,741.85-8,316.06

Finding the Fourth Proportional to 15,030.69, 20,741.85 and 8,316.06

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Solution

The fourth proportional to 15,030.69, 20,741.85 and 8,316.06 is: 11,475.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.69 : 20,741.85 = 8,316.06 : x
  2. Step 2: Convert to fraction form
    15,030.69/20,741.85 = 8,316.06/x
  3. Step 3: Cross multiply
    15,030.69x = 20,741.85 × 8,316.06
  4. Step 4: Simplify right side
    15,030.69x = 172,490,469.11
  5. Step 5: Solve for x
    x = 172,490,469.11/15,030.69
  6. Step 6: Final answer
    x = 11,475.88

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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.