Home / 19,214.28-28,782.36-9,960.84

Finding the Fourth Proportional to 19,214.28, 28,782.36 and 9,960.84

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Solution

The fourth proportional to 19,214.28, 28,782.36 and 9,960.84 is: 14,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,214.28 : 28,782.36 = 9,960.84 : x
  2. Step 2: Convert to fraction form
    19,214.28/28,782.36 = 9,960.84/x
  3. Step 3: Cross multiply
    19,214.28x = 28,782.36 × 9,960.84
  4. Step 4: Simplify right side
    19,214.28x = 286,696,482.78
  5. Step 5: Solve for x
    x = 286,696,482.78/19,214.28
  6. Step 6: Final answer
    x = 14,921.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.