Home / 15,261.49-21,060.61-8,547.06

Finding the Fourth Proportional to 15,261.49, 21,060.61 and 8,547.06

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Solution

The fourth proportional to 15,261.49, 21,060.61 and 8,547.06 is: 11,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.49 : 21,060.61 = 8,547.06 : x
  2. Step 2: Convert to fraction form
    15,261.49/21,060.61 = 8,547.06/x
  3. Step 3: Cross multiply
    15,261.49x = 21,060.61 × 8,547.06
  4. Step 4: Simplify right side
    15,261.49x = 180,006,297.31
  5. Step 5: Solve for x
    x = 180,006,297.31/15,261.49
  6. Step 6: Final answer
    x = 11,794.80

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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.