Home / 12,688.50-19,033.95-4,368.18

Finding the Fourth Proportional to 12,688.50, 19,033.95 and 4,368.18

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Solution

The fourth proportional to 12,688.50, 19,033.95 and 4,368.18 is: 6,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.50 : 19,033.95 = 4,368.18 : x
  2. Step 2: Convert to fraction form
    12,688.50/19,033.95 = 4,368.18/x
  3. Step 3: Cross multiply
    12,688.50x = 19,033.95 × 4,368.18
  4. Step 4: Simplify right side
    12,688.50x = 83,143,719.71
  5. Step 5: Solve for x
    x = 83,143,719.71/12,688.50
  6. Step 6: Final answer
    x = 6,552.68

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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.