Home / 15,678.24-23,518.08-5,290.08

Finding the Fourth Proportional to 15,678.24, 23,518.08 and 5,290.08

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Solution

The fourth proportional to 15,678.24, 23,518.08 and 5,290.08 is: 7,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.24 : 23,518.08 = 5,290.08 : x
  2. Step 2: Convert to fraction form
    15,678.24/23,518.08 = 5,290.08/x
  3. Step 3: Cross multiply
    15,678.24x = 23,518.08 × 5,290.08
  4. Step 4: Simplify right side
    15,678.24x = 124,412,524.65
  5. Step 5: Solve for x
    x = 124,412,524.65/15,678.24
  6. Step 6: Final answer
    x = 7,935.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.