Home / 19,764.72-27,275.95-10,812.22

Finding the Fourth Proportional to 19,764.72, 27,275.95 and 10,812.22

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Solution

The fourth proportional to 19,764.72, 27,275.95 and 10,812.22 is: 14,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.72 : 27,275.95 = 10,812.22 : x
  2. Step 2: Convert to fraction form
    19,764.72/27,275.95 = 10,812.22/x
  3. Step 3: Cross multiply
    19,764.72x = 27,275.95 × 10,812.22
  4. Step 4: Simplify right side
    19,764.72x = 294,913,647.71
  5. Step 5: Solve for x
    x = 294,913,647.71/19,764.72
  6. Step 6: Final answer
    x = 14,921.21

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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.