Home / 10,918.30-15,070.05-6,204.10

Finding the Fourth Proportional to 10,918.30, 15,070.05 and 6,204.10

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Solution

The fourth proportional to 10,918.30, 15,070.05 and 6,204.10 is: 8,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.30 : 15,070.05 = 6,204.10 : x
  2. Step 2: Convert to fraction form
    10,918.30/15,070.05 = 6,204.10/x
  3. Step 3: Cross multiply
    10,918.30x = 15,070.05 × 6,204.10
  4. Step 4: Simplify right side
    10,918.30x = 93,496,097.21
  5. Step 5: Solve for x
    x = 93,496,097.21/10,918.30
  6. Step 6: Final answer
    x = 8,563.25

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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.