Home / 12,389.65-18,567.57-5,267.95

Finding the Fourth Proportional to 12,389.65, 18,567.57 and 5,267.95

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Solution

The fourth proportional to 12,389.65, 18,567.57 and 5,267.95 is: 7,894.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.65 : 18,567.57 = 5,267.95 : x
  2. Step 2: Convert to fraction form
    12,389.65/18,567.57 = 5,267.95/x
  3. Step 3: Cross multiply
    12,389.65x = 18,567.57 × 5,267.95
  4. Step 4: Simplify right side
    12,389.65x = 97,813,030.38
  5. Step 5: Solve for x
    x = 97,813,030.38/12,389.65
  6. Step 6: Final answer
    x = 7,894.74

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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.