Home / 12,637.71-18,956.55-5,616.09

Finding the Fourth Proportional to 12,637.71, 18,956.55 and 5,616.09

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Solution

The fourth proportional to 12,637.71, 18,956.55 and 5,616.09 is: 8,424.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.71 : 18,956.55 = 5,616.09 : x
  2. Step 2: Convert to fraction form
    12,637.71/18,956.55 = 5,616.09/x
  3. Step 3: Cross multiply
    12,637.71x = 18,956.55 × 5,616.09
  4. Step 4: Simplify right side
    12,637.71x = 106,461,690.89
  5. Step 5: Solve for x
    x = 106,461,690.89/12,637.71
  6. Step 6: Final answer
    x = 8,424.13

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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.