Home / 13,862.58-19,130.36-7,489.17

Finding the Fourth Proportional to 13,862.58, 19,130.36 and 7,489.17

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Solution

The fourth proportional to 13,862.58, 19,130.36 and 7,489.17 is: 10,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.58 : 19,130.36 = 7,489.17 : x
  2. Step 2: Convert to fraction form
    13,862.58/19,130.36 = 7,489.17/x
  3. Step 3: Cross multiply
    13,862.58x = 19,130.36 × 7,489.17
  4. Step 4: Simplify right side
    13,862.58x = 143,270,442.55
  5. Step 5: Solve for x
    x = 143,270,442.55/13,862.58
  6. Step 6: Final answer
    x = 10,335.05

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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.