Home / 13,785.84-19,002.33-9,308.16

Finding the Fourth Proportional to 13,785.84, 19,002.33 and 9,308.16

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Solution

The fourth proportional to 13,785.84, 19,002.33 and 9,308.16 is: 12,830.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.84 : 19,002.33 = 9,308.16 : x
  2. Step 2: Convert to fraction form
    13,785.84/19,002.33 = 9,308.16/x
  3. Step 3: Cross multiply
    13,785.84x = 19,002.33 × 9,308.16
  4. Step 4: Simplify right side
    13,785.84x = 176,876,728.01
  5. Step 5: Solve for x
    x = 176,876,728.01/13,785.84
  6. Step 6: Final answer
    x = 12,830.32

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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.