Home / 12,539.03-17,300.36-9,878.18

Finding the Fourth Proportional to 12,539.03, 17,300.36 and 9,878.18

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Solution

The fourth proportional to 12,539.03, 17,300.36 and 9,878.18 is: 13,629.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.03 : 17,300.36 = 9,878.18 : x
  2. Step 2: Convert to fraction form
    12,539.03/17,300.36 = 9,878.18/x
  3. Step 3: Cross multiply
    12,539.03x = 17,300.36 × 9,878.18
  4. Step 4: Simplify right side
    12,539.03x = 170,896,002.20
  5. Step 5: Solve for x
    x = 170,896,002.20/12,539.03
  6. Step 6: Final answer
    x = 13,629.13

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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.