Home / 13,309.49-18,366.73-7,341.05

Finding the Fourth Proportional to 13,309.49, 18,366.73 and 7,341.05

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Solution

The fourth proportional to 13,309.49, 18,366.73 and 7,341.05 is: 10,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.49 : 18,366.73 = 7,341.05 : x
  2. Step 2: Convert to fraction form
    13,309.49/18,366.73 = 7,341.05/x
  3. Step 3: Cross multiply
    13,309.49x = 18,366.73 × 7,341.05
  4. Step 4: Simplify right side
    13,309.49x = 134,831,083.27
  5. Step 5: Solve for x
    x = 134,831,083.27/13,309.49
  6. Step 6: Final answer
    x = 10,130.45

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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.