Home / 8,465.36-11,686.23-5,637.47

Finding the Fourth Proportional to 8,465.36, 11,686.23 and 5,637.47

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Solution

The fourth proportional to 8,465.36, 11,686.23 and 5,637.47 is: 7,782.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.36 : 11,686.23 = 5,637.47 : x
  2. Step 2: Convert to fraction form
    8,465.36/11,686.23 = 5,637.47/x
  3. Step 3: Cross multiply
    8,465.36x = 11,686.23 × 5,637.47
  4. Step 4: Simplify right side
    8,465.36x = 65,880,712.61
  5. Step 5: Solve for x
    x = 65,880,712.61/8,465.36
  6. Step 6: Final answer
    x = 7,782.39

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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.