Home / 15,477.90-21,359.93-9,104.95

Finding the Fourth Proportional to 15,477.90, 21,359.93 and 9,104.95

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Solution

The fourth proportional to 15,477.90, 21,359.93 and 9,104.95 is: 12,565.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.90 : 21,359.93 = 9,104.95 : x
  2. Step 2: Convert to fraction form
    15,477.90/21,359.93 = 9,104.95/x
  3. Step 3: Cross multiply
    15,477.90x = 21,359.93 × 9,104.95
  4. Step 4: Simplify right side
    15,477.90x = 194,481,094.65
  5. Step 5: Solve for x
    x = 194,481,094.65/15,477.90
  6. Step 6: Final answer
    x = 12,565.08

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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.