Home / 15,261.62-21,060.51-8,547.53

Finding the Fourth Proportional to 15,261.62, 21,060.51 and 8,547.53

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Solution

The fourth proportional to 15,261.62, 21,060.51 and 8,547.53 is: 11,795.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.62 : 21,060.51 = 8,547.53 : x
  2. Step 2: Convert to fraction form
    15,261.62/21,060.51 = 8,547.53/x
  3. Step 3: Cross multiply
    15,261.62x = 21,060.51 × 8,547.53
  4. Step 4: Simplify right side
    15,261.62x = 180,015,203.68
  5. Step 5: Solve for x
    x = 180,015,203.68/15,261.62
  6. Step 6: Final answer
    x = 11,795.29

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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.