Home / 12,430.60-18,656.10-12,333.40

Finding the Fourth Proportional to 12,430.60, 18,656.10 and 12,333.40

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Solution

The fourth proportional to 12,430.60, 18,656.10 and 12,333.40 is: 18,510.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.60 : 18,656.10 = 12,333.40 : x
  2. Step 2: Convert to fraction form
    12,430.60/18,656.10 = 12,333.40/x
  3. Step 3: Cross multiply
    12,430.60x = 18,656.10 × 12,333.40
  4. Step 4: Simplify right side
    12,430.60x = 230,093,143.74
  5. Step 5: Solve for x
    x = 230,093,143.74/12,430.60
  6. Step 6: Final answer
    x = 18,510.22

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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.