Home / 15,281.76-21,069.32-10,238.00

Finding the Fourth Proportional to 15,281.76, 21,069.32 and 10,238.00

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Solution

The fourth proportional to 15,281.76, 21,069.32 and 10,238.00 is: 14,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.76 : 21,069.32 = 10,238.00 : x
  2. Step 2: Convert to fraction form
    15,281.76/21,069.32 = 10,238.00/x
  3. Step 3: Cross multiply
    15,281.76x = 21,069.32 × 10,238.00
  4. Step 4: Simplify right side
    15,281.76x = 215,707,541.62
  5. Step 5: Solve for x
    x = 215,707,541.62/15,281.76
  6. Step 6: Final answer
    x = 14,115.36

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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.