Home / 19,320.64-26,660.16-10,823.20

Finding the Fourth Proportional to 19,320.64, 26,660.16 and 10,823.20

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Solution

The fourth proportional to 19,320.64, 26,660.16 and 10,823.20 is: 14,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.64 : 26,660.16 = 10,823.20 : x
  2. Step 2: Convert to fraction form
    19,320.64/26,660.16 = 10,823.20/x
  3. Step 3: Cross multiply
    19,320.64x = 26,660.16 × 10,823.20
  4. Step 4: Simplify right side
    19,320.64x = 288,548,243.71
  5. Step 5: Solve for x
    x = 288,548,243.71/19,320.64
  6. Step 6: Final answer
    x = 14,934.71

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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.