Home / 15,261.03-21,053.21-9,885.26

Finding the Fourth Proportional to 15,261.03, 21,053.21 and 9,885.26

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Solution

The fourth proportional to 15,261.03, 21,053.21 and 9,885.26 is: 13,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.03 : 21,053.21 = 9,885.26 : x
  2. Step 2: Convert to fraction form
    15,261.03/21,053.21 = 9,885.26/x
  3. Step 3: Cross multiply
    15,261.03x = 21,053.21 × 9,885.26
  4. Step 4: Simplify right side
    15,261.03x = 208,116,454.68
  5. Step 5: Solve for x
    x = 208,116,454.68/15,261.03
  6. Step 6: Final answer
    x = 13,637.12

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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.