Home / 13,187.16-19,775.72-4,300.16

Finding the Fourth Proportional to 13,187.16, 19,775.72 and 4,300.16

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Solution

The fourth proportional to 13,187.16, 19,775.72 and 4,300.16 is: 6,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.16 : 19,775.72 = 4,300.16 : x
  2. Step 2: Convert to fraction form
    13,187.16/19,775.72 = 4,300.16/x
  3. Step 3: Cross multiply
    13,187.16x = 19,775.72 × 4,300.16
  4. Step 4: Simplify right side
    13,187.16x = 85,038,760.12
  5. Step 5: Solve for x
    x = 85,038,760.12/13,187.16
  6. Step 6: Final answer
    x = 6,448.60

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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.