Home / 13,293.89-18,345.29-7,325.40

Finding the Fourth Proportional to 13,293.89, 18,345.29 and 7,325.40

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Solution

The fourth proportional to 13,293.89, 18,345.29 and 7,325.40 is: 10,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.89 : 18,345.29 = 7,325.40 : x
  2. Step 2: Convert to fraction form
    13,293.89/18,345.29 = 7,325.40/x
  3. Step 3: Cross multiply
    13,293.89x = 18,345.29 × 7,325.40
  4. Step 4: Simplify right side
    13,293.89x = 134,386,550.74
  5. Step 5: Solve for x
    x = 134,386,550.74/13,293.89
  6. Step 6: Final answer
    x = 10,108.90

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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.