Home / 13,130.88-19,693.68-4,363.20

Finding the Fourth Proportional to 13,130.88, 19,693.68 and 4,363.20

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Solution

The fourth proportional to 13,130.88, 19,693.68 and 4,363.20 is: 6,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.88 : 19,693.68 = 4,363.20 : x
  2. Step 2: Convert to fraction form
    13,130.88/19,693.68 = 4,363.20/x
  3. Step 3: Cross multiply
    13,130.88x = 19,693.68 × 4,363.20
  4. Step 4: Simplify right side
    13,130.88x = 85,927,464.58
  5. Step 5: Solve for x
    x = 85,927,464.58/13,130.88
  6. Step 6: Final answer
    x = 6,543.92

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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.