Home / 12,132.18-16,746.75-7,416.90

Finding the Fourth Proportional to 12,132.18, 16,746.75 and 7,416.90

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Solution

The fourth proportional to 12,132.18, 16,746.75 and 7,416.90 is: 10,237.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.18 : 16,746.75 = 7,416.90 : x
  2. Step 2: Convert to fraction form
    12,132.18/16,746.75 = 7,416.90/x
  3. Step 3: Cross multiply
    12,132.18x = 16,746.75 × 7,416.90
  4. Step 4: Simplify right side
    12,132.18x = 124,208,970.08
  5. Step 5: Solve for x
    x = 124,208,970.08/12,132.18
  6. Step 6: Final answer
    x = 10,237.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.