Home / 17,783.90-26,679.81-6,690.68

Finding the Fourth Proportional to 17,783.90, 26,679.81 and 6,690.68

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Solution

The fourth proportional to 17,783.90, 26,679.81 and 6,690.68 is: 10,037.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,783.90 : 26,679.81 = 6,690.68 : x
  2. Step 2: Convert to fraction form
    17,783.90/26,679.81 = 6,690.68/x
  3. Step 3: Cross multiply
    17,783.90x = 26,679.81 × 6,690.68
  4. Step 4: Simplify right side
    17,783.90x = 178,506,071.17
  5. Step 5: Solve for x
    x = 178,506,071.17/17,783.90
  6. Step 6: Final answer
    x = 10,037.51

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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.