Home / 19,875.51-27,429.03-11,376.99

Finding the Fourth Proportional to 19,875.51, 27,429.03 and 11,376.99

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Solution

The fourth proportional to 19,875.51, 27,429.03 and 11,376.99 is: 15,700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.51 : 27,429.03 = 11,376.99 : x
  2. Step 2: Convert to fraction form
    19,875.51/27,429.03 = 11,376.99/x
  3. Step 3: Cross multiply
    19,875.51x = 27,429.03 × 11,376.99
  4. Step 4: Simplify right side
    19,875.51x = 312,059,800.02
  5. Step 5: Solve for x
    x = 312,059,800.02/19,875.51
  6. Step 6: Final answer
    x = 15,700.72

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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.