Home / 10,018.55-15,030.21-2,999.15

Finding the Fourth Proportional to 10,018.55, 15,030.21 and 2,999.15

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Solution

The fourth proportional to 10,018.55, 15,030.21 and 2,999.15 is: 4,499.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,018.55 : 15,030.21 = 2,999.15 : x
  2. Step 2: Convert to fraction form
    10,018.55/15,030.21 = 2,999.15/x
  3. Step 3: Cross multiply
    10,018.55x = 15,030.21 × 2,999.15
  4. Step 4: Simplify right side
    10,018.55x = 45,077,779.17
  5. Step 5: Solve for x
    x = 45,077,779.17/10,018.55
  6. Step 6: Final answer
    x = 4,499.43

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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.