Home / 13,723.13-18,938.35-8,946.15

Finding the Fourth Proportional to 13,723.13, 18,938.35 and 8,946.15

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Solution

The fourth proportional to 13,723.13, 18,938.35 and 8,946.15 is: 12,345.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.13 : 18,938.35 = 8,946.15 : x
  2. Step 2: Convert to fraction form
    13,723.13/18,938.35 = 8,946.15/x
  3. Step 3: Cross multiply
    13,723.13x = 18,938.35 × 8,946.15
  4. Step 4: Simplify right side
    13,723.13x = 169,425,417.68
  5. Step 5: Solve for x
    x = 169,425,417.68/13,723.13
  6. Step 6: Final answer
    x = 12,345.98

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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.