Home / 15,790.84-23,681.19-8,391.08

Finding the Fourth Proportional to 15,790.84, 23,681.19 and 8,391.08

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Solution

The fourth proportional to 15,790.84, 23,681.19 and 8,391.08 is: 12,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790.84 : 23,681.19 = 8,391.08 : x
  2. Step 2: Convert to fraction form
    15,790.84/23,681.19 = 8,391.08/x
  3. Step 3: Cross multiply
    15,790.84x = 23,681.19 × 8,391.08
  4. Step 4: Simplify right side
    15,790.84x = 198,710,759.79
  5. Step 5: Solve for x
    x = 198,710,759.79/15,790.84
  6. Step 6: Final answer
    x = 12,583.93

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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.