Home / 15,415.20-23,118.12-6,648.48

Finding the Fourth Proportional to 15,415.20, 23,118.12 and 6,648.48

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Solution

The fourth proportional to 15,415.20, 23,118.12 and 6,648.48 is: 9,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.20 : 23,118.12 = 6,648.48 : x
  2. Step 2: Convert to fraction form
    15,415.20/23,118.12 = 6,648.48/x
  3. Step 3: Cross multiply
    15,415.20x = 23,118.12 × 6,648.48
  4. Step 4: Simplify right side
    15,415.20x = 153,700,358.46
  5. Step 5: Solve for x
    x = 153,700,358.46/15,415.20
  6. Step 6: Final answer
    x = 9,970.70

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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.