Home / 18,714.16-28,088.24-9,956.40

Finding the Fourth Proportional to 18,714.16, 28,088.24 and 9,956.40

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Solution

The fourth proportional to 18,714.16, 28,088.24 and 9,956.40 is: 14,943.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.16 : 28,088.24 = 9,956.40 : x
  2. Step 2: Convert to fraction form
    18,714.16/28,088.24 = 9,956.40/x
  3. Step 3: Cross multiply
    18,714.16x = 28,088.24 × 9,956.40
  4. Step 4: Simplify right side
    18,714.16x = 279,657,752.74
  5. Step 5: Solve for x
    x = 279,657,752.74/18,714.16
  6. Step 6: Final answer
    x = 14,943.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.