Home / 15,478.36-23,215.61-9,156.98

Finding the Fourth Proportional to 15,478.36, 23,215.61 and 9,156.98

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Solution

The fourth proportional to 15,478.36, 23,215.61 and 9,156.98 is: 13,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.36 : 23,215.61 = 9,156.98 : x
  2. Step 2: Convert to fraction form
    15,478.36/23,215.61 = 9,156.98/x
  3. Step 3: Cross multiply
    15,478.36x = 23,215.61 × 9,156.98
  4. Step 4: Simplify right side
    15,478.36x = 212,584,957.39
  5. Step 5: Solve for x
    x = 212,584,957.39/15,478.36
  6. Step 6: Final answer
    x = 13,734.34

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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.