Home / 17,875.91-24,670.10-9,919.64

Finding the Fourth Proportional to 17,875.91, 24,670.10 and 9,919.64

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Solution

The fourth proportional to 17,875.91, 24,670.10 and 9,919.64 is: 13,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,875.91 : 24,670.10 = 9,919.64 : x
  2. Step 2: Convert to fraction form
    17,875.91/24,670.10 = 9,919.64/x
  3. Step 3: Cross multiply
    17,875.91x = 24,670.10 × 9,919.64
  4. Step 4: Simplify right side
    17,875.91x = 244,718,412.21
  5. Step 5: Solve for x
    x = 244,718,412.21/17,875.91
  6. Step 6: Final answer
    x = 13,689.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.