Home / 15,285.18-21,094.80-8,998.80

Finding the Fourth Proportional to 15,285.18, 21,094.80 and 8,998.80

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Solution

The fourth proportional to 15,285.18, 21,094.80 and 8,998.80 is: 12,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.18 : 21,094.80 = 8,998.80 : x
  2. Step 2: Convert to fraction form
    15,285.18/21,094.80 = 8,998.80/x
  3. Step 3: Cross multiply
    15,285.18x = 21,094.80 × 8,998.80
  4. Step 4: Simplify right side
    15,285.18x = 189,827,886.24
  5. Step 5: Solve for x
    x = 189,827,886.24/15,285.18
  6. Step 6: Final answer
    x = 12,419.08

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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.