Home / 13,785.12-19,032.12-9,077.40

Finding the Fourth Proportional to 13,785.12, 19,032.12 and 9,077.40

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Solution

The fourth proportional to 13,785.12, 19,032.12 and 9,077.40 is: 12,532.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.12 : 19,032.12 = 9,077.40 : x
  2. Step 2: Convert to fraction form
    13,785.12/19,032.12 = 9,077.40/x
  3. Step 3: Cross multiply
    13,785.12x = 19,032.12 × 9,077.40
  4. Step 4: Simplify right side
    13,785.12x = 172,762,166.09
  5. Step 5: Solve for x
    x = 172,762,166.09/13,785.12
  6. Step 6: Final answer
    x = 12,532.51

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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.