Home / 13,322.84-18,386.13-7,659.43

Finding the Fourth Proportional to 13,322.84, 18,386.13 and 7,659.43

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Solution

The fourth proportional to 13,322.84, 18,386.13 and 7,659.43 is: 10,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.84 : 18,386.13 = 7,659.43 : x
  2. Step 2: Convert to fraction form
    13,322.84/18,386.13 = 7,659.43/x
  3. Step 3: Cross multiply
    13,322.84x = 18,386.13 × 7,659.43
  4. Step 4: Simplify right side
    13,322.84x = 140,827,275.71
  5. Step 5: Solve for x
    x = 140,827,275.71/13,322.84
  6. Step 6: Final answer
    x = 10,570.36

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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.