Home / 13,065.21-18,023.18-8,030.57

Finding the Fourth Proportional to 13,065.21, 18,023.18 and 8,030.57

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Solution

The fourth proportional to 13,065.21, 18,023.18 and 8,030.57 is: 11,077.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.21 : 18,023.18 = 8,030.57 : x
  2. Step 2: Convert to fraction form
    13,065.21/18,023.18 = 8,030.57/x
  3. Step 3: Cross multiply
    13,065.21x = 18,023.18 × 8,030.57
  4. Step 4: Simplify right side
    13,065.21x = 144,736,278.34
  5. Step 5: Solve for x
    x = 144,736,278.34/13,065.21
  6. Step 6: Final answer
    x = 11,077.99

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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.