Home / 12,724.16-19,068.96-5,782.40

Finding the Fourth Proportional to 12,724.16, 19,068.96 and 5,782.40

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Solution

The fourth proportional to 12,724.16, 19,068.96 and 5,782.40 is: 8,665.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.16 : 19,068.96 = 5,782.40 : x
  2. Step 2: Convert to fraction form
    12,724.16/19,068.96 = 5,782.40/x
  3. Step 3: Cross multiply
    12,724.16x = 19,068.96 × 5,782.40
  4. Step 4: Simplify right side
    12,724.16x = 110,264,354.30
  5. Step 5: Solve for x
    x = 110,264,354.30/12,724.16
  6. Step 6: Final answer
    x = 8,665.75

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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.