Home / 13,259.84-19,850.28-8,570.76

Finding the Fourth Proportional to 13,259.84, 19,850.28 and 8,570.76

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Solution

The fourth proportional to 13,259.84, 19,850.28 and 8,570.76 is: 12,830.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.84 : 19,850.28 = 8,570.76 : x
  2. Step 2: Convert to fraction form
    13,259.84/19,850.28 = 8,570.76/x
  3. Step 3: Cross multiply
    13,259.84x = 19,850.28 × 8,570.76
  4. Step 4: Simplify right side
    13,259.84x = 170,131,985.81
  5. Step 5: Solve for x
    x = 170,131,985.81/13,259.84
  6. Step 6: Final answer
    x = 12,830.62

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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.