Home / 10,005.48-14,936.79-8,693.64

Finding the Fourth Proportional to 10,005.48, 14,936.79 and 8,693.64

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Solution

The fourth proportional to 10,005.48, 14,936.79 and 8,693.64 is: 12,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.48 : 14,936.79 = 8,693.64 : x
  2. Step 2: Convert to fraction form
    10,005.48/14,936.79 = 8,693.64/x
  3. Step 3: Cross multiply
    10,005.48x = 14,936.79 × 8,693.64
  4. Step 4: Simplify right side
    10,005.48x = 129,855,075.02
  5. Step 5: Solve for x
    x = 129,855,075.02/10,005.48
  6. Step 6: Final answer
    x = 12,978.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.