Home / 13,875.26-19,147.88-7,587.64

Finding the Fourth Proportional to 13,875.26, 19,147.88 and 7,587.64

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Solution

The fourth proportional to 13,875.26, 19,147.88 and 7,587.64 is: 10,470.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.26 : 19,147.88 = 7,587.64 : x
  2. Step 2: Convert to fraction form
    13,875.26/19,147.88 = 7,587.64/x
  3. Step 3: Cross multiply
    13,875.26x = 19,147.88 × 7,587.64
  4. Step 4: Simplify right side
    13,875.26x = 145,287,220.20
  5. Step 5: Solve for x
    x = 145,287,220.20/13,875.26
  6. Step 6: Final answer
    x = 10,470.95

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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.