Home / 15,432.10-23,141.40-7,109.35

Finding the Fourth Proportional to 15,432.10, 23,141.40 and 7,109.35

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Solution

The fourth proportional to 15,432.10, 23,141.40 and 7,109.35 is: 10,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.10 : 23,141.40 = 7,109.35 : x
  2. Step 2: Convert to fraction form
    15,432.10/23,141.40 = 7,109.35/x
  3. Step 3: Cross multiply
    15,432.10x = 23,141.40 × 7,109.35
  4. Step 4: Simplify right side
    15,432.10x = 164,520,312.09
  5. Step 5: Solve for x
    x = 164,520,312.09/15,432.10
  6. Step 6: Final answer
    x = 10,660.92

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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.