Home / 13,012.77-19,515.13-4,691.72

Finding the Fourth Proportional to 13,012.77, 19,515.13 and 4,691.72

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Solution

The fourth proportional to 13,012.77, 19,515.13 and 4,691.72 is: 7,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.77 : 19,515.13 = 4,691.72 : x
  2. Step 2: Convert to fraction form
    13,012.77/19,515.13 = 4,691.72/x
  3. Step 3: Cross multiply
    13,012.77x = 19,515.13 × 4,691.72
  4. Step 4: Simplify right side
    13,012.77x = 91,559,416.42
  5. Step 5: Solve for x
    x = 91,559,416.42/13,012.77
  6. Step 6: Final answer
    x = 7,036.12

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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.