Home / 15,946.08-23,920.80-5,415.84

Finding the Fourth Proportional to 15,946.08, 23,920.80 and 5,415.84

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Solution

The fourth proportional to 15,946.08, 23,920.80 and 5,415.84 is: 8,124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,946.08 : 23,920.80 = 5,415.84 : x
  2. Step 2: Convert to fraction form
    15,946.08/23,920.80 = 5,415.84/x
  3. Step 3: Cross multiply
    15,946.08x = 23,920.80 × 5,415.84
  4. Step 4: Simplify right side
    15,946.08x = 129,551,225.47
  5. Step 5: Solve for x
    x = 129,551,225.47/15,946.08
  6. Step 6: Final answer
    x = 8,124.33

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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.