Home / 15,055.10-20,777.18-8,341.35

Finding the Fourth Proportional to 15,055.10, 20,777.18 and 8,341.35

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Solution

The fourth proportional to 15,055.10, 20,777.18 and 8,341.35 is: 11,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.10 : 20,777.18 = 8,341.35 : x
  2. Step 2: Convert to fraction form
    15,055.10/20,777.18 = 8,341.35/x
  3. Step 3: Cross multiply
    15,055.10x = 20,777.18 × 8,341.35
  4. Step 4: Simplify right side
    15,055.10x = 173,309,688.69
  5. Step 5: Solve for x
    x = 173,309,688.69/15,055.10
  6. Step 6: Final answer
    x = 11,511.70

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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.