Home / 11,904.30-17,856.72-3,140.10

Finding the Fourth Proportional to 11,904.30, 17,856.72 and 3,140.10

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Solution

The fourth proportional to 11,904.30, 17,856.72 and 3,140.10 is: 4,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.30 : 17,856.72 = 3,140.10 : x
  2. Step 2: Convert to fraction form
    11,904.30/17,856.72 = 3,140.10/x
  3. Step 3: Cross multiply
    11,904.30x = 17,856.72 × 3,140.10
  4. Step 4: Simplify right side
    11,904.30x = 56,071,886.47
  5. Step 5: Solve for x
    x = 56,071,886.47/11,904.30
  6. Step 6: Final answer
    x = 4,710.22

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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.