Home / 13,407.84-18,501.93-7,439.13

Finding the Fourth Proportional to 13,407.84, 18,501.93 and 7,439.13

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Solution

The fourth proportional to 13,407.84, 18,501.93 and 7,439.13 is: 10,265.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.84 : 18,501.93 = 7,439.13 : x
  2. Step 2: Convert to fraction form
    13,407.84/18,501.93 = 7,439.13/x
  3. Step 3: Cross multiply
    13,407.84x = 18,501.93 × 7,439.13
  4. Step 4: Simplify right side
    13,407.84x = 137,638,262.52
  5. Step 5: Solve for x
    x = 137,638,262.52/13,407.84
  6. Step 6: Final answer
    x = 10,265.51

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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.