Home / 19,678.65-27,156.68-10,726.12

Finding the Fourth Proportional to 19,678.65, 27,156.68 and 10,726.12

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Solution

The fourth proportional to 19,678.65, 27,156.68 and 10,726.12 is: 14,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.65 : 27,156.68 = 10,726.12 : x
  2. Step 2: Convert to fraction form
    19,678.65/27,156.68 = 10,726.12/x
  3. Step 3: Cross multiply
    19,678.65x = 27,156.68 × 10,726.12
  4. Step 4: Simplify right side
    19,678.65x = 291,285,808.48
  5. Step 5: Solve for x
    x = 291,285,808.48/19,678.65
  6. Step 6: Final answer
    x = 14,802.12

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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.