Home / 13,875.64-19,147.68-8,570.92

Finding the Fourth Proportional to 13,875.64, 19,147.68 and 8,570.92

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Solution

The fourth proportional to 13,875.64, 19,147.68 and 8,570.92 is: 11,827.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.64 : 19,147.68 = 8,570.92 : x
  2. Step 2: Convert to fraction form
    13,875.64/19,147.68 = 8,570.92/x
  3. Step 3: Cross multiply
    13,875.64x = 19,147.68 × 8,570.92
  4. Step 4: Simplify right side
    13,875.64x = 164,113,233.47
  5. Step 5: Solve for x
    x = 164,113,233.47/13,875.64
  6. Step 6: Final answer
    x = 11,827.44

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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.