Home / 15,823.84-23,739.36-8,424.40

Finding the Fourth Proportional to 15,823.84, 23,739.36 and 8,424.40

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Solution

The fourth proportional to 15,823.84, 23,739.36 and 8,424.40 is: 12,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,823.84 : 23,739.36 = 8,424.40 : x
  2. Step 2: Convert to fraction form
    15,823.84/23,739.36 = 8,424.40/x
  3. Step 3: Cross multiply
    15,823.84x = 23,739.36 × 8,424.40
  4. Step 4: Simplify right side
    15,823.84x = 199,989,864.38
  5. Step 5: Solve for x
    x = 199,989,864.38/15,823.84
  6. Step 6: Final answer
    x = 12,638.52

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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.