Home / 10,712.48-14,784.97-6,405.28

Finding the Fourth Proportional to 10,712.48, 14,784.97 and 6,405.28

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Solution

The fourth proportional to 10,712.48, 14,784.97 and 6,405.28 is: 8,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.48 : 14,784.97 = 6,405.28 : x
  2. Step 2: Convert to fraction form
    10,712.48/14,784.97 = 6,405.28/x
  3. Step 3: Cross multiply
    10,712.48x = 14,784.97 × 6,405.28
  4. Step 4: Simplify right side
    10,712.48x = 94,701,875.11
  5. Step 5: Solve for x
    x = 94,701,875.11/10,712.48
  6. Step 6: Final answer
    x = 8,840.33

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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.