Home / 15,300.33-21,114.10-8,585.80

Finding the Fourth Proportional to 15,300.33, 21,114.10 and 8,585.80

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Solution

The fourth proportional to 15,300.33, 21,114.10 and 8,585.80 is: 11,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.33 : 21,114.10 = 8,585.80 : x
  2. Step 2: Convert to fraction form
    15,300.33/21,114.10 = 8,585.80/x
  3. Step 3: Cross multiply
    15,300.33x = 21,114.10 × 8,585.80
  4. Step 4: Simplify right side
    15,300.33x = 181,281,397.73
  5. Step 5: Solve for x
    x = 181,281,397.73/15,300.33
  6. Step 6: Final answer
    x = 11,848.20

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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.