Home / 17,865.84-26,802.56-5,386.80

Finding the Fourth Proportional to 17,865.84, 26,802.56 and 5,386.80

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Solution

The fourth proportional to 17,865.84, 26,802.56 and 5,386.80 is: 8,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865.84 : 26,802.56 = 5,386.80 : x
  2. Step 2: Convert to fraction form
    17,865.84/26,802.56 = 5,386.80/x
  3. Step 3: Cross multiply
    17,865.84x = 26,802.56 × 5,386.80
  4. Step 4: Simplify right side
    17,865.84x = 144,380,030.21
  5. Step 5: Solve for x
    x = 144,380,030.21/17,865.84
  6. Step 6: Final answer
    x = 8,081.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.