Home / 15,848.16-21,870.24-9,133.80

Finding the Fourth Proportional to 15,848.16, 21,870.24 and 9,133.80

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Solution

The fourth proportional to 15,848.16, 21,870.24 and 9,133.80 is: 12,604.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,848.16 : 21,870.24 = 9,133.80 : x
  2. Step 2: Convert to fraction form
    15,848.16/21,870.24 = 9,133.80/x
  3. Step 3: Cross multiply
    15,848.16x = 21,870.24 × 9,133.80
  4. Step 4: Simplify right side
    15,848.16x = 199,758,398.11
  5. Step 5: Solve for x
    x = 199,758,398.11/15,848.16
  6. Step 6: Final answer
    x = 12,604.52

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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.