Home / 15,285.91-21,095.64-8,482.16

Finding the Fourth Proportional to 15,285.91, 21,095.64 and 8,482.16

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Solution

The fourth proportional to 15,285.91, 21,095.64 and 8,482.16 is: 11,705.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.91 : 21,095.64 = 8,482.16 : x
  2. Step 2: Convert to fraction form
    15,285.91/21,095.64 = 8,482.16/x
  3. Step 3: Cross multiply
    15,285.91x = 21,095.64 × 8,482.16
  4. Step 4: Simplify right side
    15,285.91x = 178,936,445.89
  5. Step 5: Solve for x
    x = 178,936,445.89/15,285.91
  6. Step 6: Final answer
    x = 11,705.98

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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.