Home / 15,261.72-21,053.74-9,603.48

Finding the Fourth Proportional to 15,261.72, 21,053.74 and 9,603.48

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Solution

The fourth proportional to 15,261.72, 21,053.74 and 9,603.48 is: 13,248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.72 : 21,053.74 = 9,603.48 : x
  2. Step 2: Convert to fraction form
    15,261.72/21,053.74 = 9,603.48/x
  3. Step 3: Cross multiply
    15,261.72x = 21,053.74 × 9,603.48
  4. Step 4: Simplify right side
    15,261.72x = 202,189,171.02
  5. Step 5: Solve for x
    x = 202,189,171.02/15,261.72
  6. Step 6: Final answer
    x = 13,248.12

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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.