Home / 13,002.15-19,491.53-4,680.21

Finding the Fourth Proportional to 13,002.15, 19,491.53 and 4,680.21

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Solution

The fourth proportional to 13,002.15, 19,491.53 and 4,680.21 is: 7,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,002.15 : 19,491.53 = 4,680.21 : x
  2. Step 2: Convert to fraction form
    13,002.15/19,491.53 = 4,680.21/x
  3. Step 3: Cross multiply
    13,002.15x = 19,491.53 × 4,680.21
  4. Step 4: Simplify right side
    13,002.15x = 91,224,430.22
  5. Step 5: Solve for x
    x = 91,224,430.22/13,002.15
  6. Step 6: Final answer
    x = 7,016.10

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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.