Home / 8,368.40-11,546.46-5,385.24

Finding the Fourth Proportional to 8,368.40, 11,546.46 and 5,385.24

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Solution

The fourth proportional to 8,368.40, 11,546.46 and 5,385.24 is: 7,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.40 : 11,546.46 = 5,385.24 : x
  2. Step 2: Convert to fraction form
    8,368.40/11,546.46 = 5,385.24/x
  3. Step 3: Cross multiply
    8,368.40x = 11,546.46 × 5,385.24
  4. Step 4: Simplify right side
    8,368.40x = 62,180,458.25
  5. Step 5: Solve for x
    x = 62,180,458.25/8,368.40
  6. Step 6: Final answer
    x = 7,430.39

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Find fourth proportional to 8,369.40, 11,547.84 and 5,386.24
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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.