Home / 10,209.68-14,087.20-6,678.08

Finding the Fourth Proportional to 10,209.68, 14,087.20 and 6,678.08

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Solution

The fourth proportional to 10,209.68, 14,087.20 and 6,678.08 is: 9,214.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.68 : 14,087.20 = 6,678.08 : x
  2. Step 2: Convert to fraction form
    10,209.68/14,087.20 = 6,678.08/x
  3. Step 3: Cross multiply
    10,209.68x = 14,087.20 × 6,678.08
  4. Step 4: Simplify right side
    10,209.68x = 94,075,448.58
  5. Step 5: Solve for x
    x = 94,075,448.58/10,209.68
  6. Step 6: Final answer
    x = 9,214.34

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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.