Home / 11,030.30-15,219.40-6,555.54

Finding the Fourth Proportional to 11,030.30, 15,219.40 and 6,555.54

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Solution

The fourth proportional to 11,030.30, 15,219.40 and 6,555.54 is: 9,045.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,030.30 : 15,219.40 = 6,555.54 : x
  2. Step 2: Convert to fraction form
    11,030.30/15,219.40 = 6,555.54/x
  3. Step 3: Cross multiply
    11,030.30x = 15,219.40 × 6,555.54
  4. Step 4: Simplify right side
    11,030.30x = 99,771,385.48
  5. Step 5: Solve for x
    x = 99,771,385.48/11,030.30
  6. Step 6: Final answer
    x = 9,045.21

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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.