Home / 15,340.02-21,176.36-11,564.72

Finding the Fourth Proportional to 15,340.02, 21,176.36 and 11,564.72

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Solution

The fourth proportional to 15,340.02, 21,176.36 and 11,564.72 is: 15,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340.02 : 21,176.36 = 11,564.72 : x
  2. Step 2: Convert to fraction form
    15,340.02/21,176.36 = 11,564.72/x
  3. Step 3: Cross multiply
    15,340.02x = 21,176.36 × 11,564.72
  4. Step 4: Simplify right side
    15,340.02x = 244,898,674.02
  5. Step 5: Solve for x
    x = 244,898,674.02/15,340.02
  6. Step 6: Final answer
    x = 15,964.69

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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.