Home / 13,248.16-18,282.71-7,279.47

Finding the Fourth Proportional to 13,248.16, 18,282.71 and 7,279.47

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Solution

The fourth proportional to 13,248.16, 18,282.71 and 7,279.47 is: 10,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.16 : 18,282.71 = 7,279.47 : x
  2. Step 2: Convert to fraction form
    13,248.16/18,282.71 = 7,279.47/x
  3. Step 3: Cross multiply
    13,248.16x = 18,282.71 × 7,279.47
  4. Step 4: Simplify right side
    13,248.16x = 133,088,457.16
  5. Step 5: Solve for x
    x = 133,088,457.16/13,248.16
  6. Step 6: Final answer
    x = 10,045.81

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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.