Home / 19,643.61-27,107.35-10,691.13

Finding the Fourth Proportional to 19,643.61, 27,107.35 and 10,691.13

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Solution

The fourth proportional to 19,643.61, 27,107.35 and 10,691.13 is: 14,753.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.61 : 27,107.35 = 10,691.13 : x
  2. Step 2: Convert to fraction form
    19,643.61/27,107.35 = 10,691.13/x
  3. Step 3: Cross multiply
    19,643.61x = 27,107.35 × 10,691.13
  4. Step 4: Simplify right side
    19,643.61x = 289,808,202.81
  5. Step 5: Solve for x
    x = 289,808,202.81/19,643.61
  6. Step 6: Final answer
    x = 14,753.31

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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.