Home / 15,257.48-21,048.32-9,210.02

Finding the Fourth Proportional to 15,257.48, 21,048.32 and 9,210.02

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Solution

The fourth proportional to 15,257.48, 21,048.32 and 9,210.02 is: 12,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,257.48 : 21,048.32 = 9,210.02 : x
  2. Step 2: Convert to fraction form
    15,257.48/21,048.32 = 9,210.02/x
  3. Step 3: Cross multiply
    15,257.48x = 21,048.32 × 9,210.02
  4. Step 4: Simplify right side
    15,257.48x = 193,855,365.95
  5. Step 5: Solve for x
    x = 193,855,365.95/15,257.48
  6. Step 6: Final answer
    x = 12,705.60

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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.