Home / 12,956.60-17,870.64-8,473.16

Finding the Fourth Proportional to 12,956.60, 17,870.64 and 8,473.16

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Solution

The fourth proportional to 12,956.60, 17,870.64 and 8,473.16 is: 11,686.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.60 : 17,870.64 = 8,473.16 : x
  2. Step 2: Convert to fraction form
    12,956.60/17,870.64 = 8,473.16/x
  3. Step 3: Cross multiply
    12,956.60x = 17,870.64 × 8,473.16
  4. Step 4: Simplify right side
    12,956.60x = 151,420,792.02
  5. Step 5: Solve for x
    x = 151,420,792.02/12,956.60
  6. Step 6: Final answer
    x = 11,686.77

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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.