Home / 15,416.46-21,274.65-8,702.01

Finding the Fourth Proportional to 15,416.46, 21,274.65 and 8,702.01

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Solution

The fourth proportional to 15,416.46, 21,274.65 and 8,702.01 is: 12,008.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.46 : 21,274.65 = 8,702.01 : x
  2. Step 2: Convert to fraction form
    15,416.46/21,274.65 = 8,702.01/x
  3. Step 3: Cross multiply
    15,416.46x = 21,274.65 × 8,702.01
  4. Step 4: Simplify right side
    15,416.46x = 185,132,217.05
  5. Step 5: Solve for x
    x = 185,132,217.05/15,416.46
  6. Step 6: Final answer
    x = 12,008.74

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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.