Home / 12,688.04-19,019.51-6,012.81

Finding the Fourth Proportional to 12,688.04, 19,019.51 and 6,012.81

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Solution

The fourth proportional to 12,688.04, 19,019.51 and 6,012.81 is: 9,013.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.04 : 19,019.51 = 6,012.81 : x
  2. Step 2: Convert to fraction form
    12,688.04/19,019.51 = 6,012.81/x
  3. Step 3: Cross multiply
    12,688.04x = 19,019.51 × 6,012.81
  4. Step 4: Simplify right side
    12,688.04x = 114,360,692.41
  5. Step 5: Solve for x
    x = 114,360,692.41/12,688.04
  6. Step 6: Final answer
    x = 9,013.27

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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.