Home / 19,218.17-26,521.10-10,720.84

Finding the Fourth Proportional to 19,218.17, 26,521.10 and 10,720.84

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Solution

The fourth proportional to 19,218.17, 26,521.10 and 10,720.84 is: 14,794.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.17 : 26,521.10 = 10,720.84 : x
  2. Step 2: Convert to fraction form
    19,218.17/26,521.10 = 10,720.84/x
  3. Step 3: Cross multiply
    19,218.17x = 26,521.10 × 10,720.84
  4. Step 4: Simplify right side
    19,218.17x = 284,328,283.51
  5. Step 5: Solve for x
    x = 284,328,283.51/19,218.17
  6. Step 6: Final answer
    x = 14,794.77

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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.