Home / 9,678.16-13,355.01-5,371.36

Finding the Fourth Proportional to 9,678.16, 13,355.01 and 5,371.36

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Solution

The fourth proportional to 9,678.16, 13,355.01 and 5,371.36 is: 7,412.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.16 : 13,355.01 = 5,371.36 : x
  2. Step 2: Convert to fraction form
    9,678.16/13,355.01 = 5,371.36/x
  3. Step 3: Cross multiply
    9,678.16x = 13,355.01 × 5,371.36
  4. Step 4: Simplify right side
    9,678.16x = 71,734,566.51
  5. Step 5: Solve for x
    x = 71,734,566.51/9,678.16
  6. Step 6: Final answer
    x = 7,412.00

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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.